The Environmental Protection Agency’s new rule on carbon pollution is the latest headache for Democrats trying to defend a fragile Senate majority.

Republicans seized on the Obama administration’s call for power plants to cut their carbon emissions 30 percent by 2030 as an opportunity to attack Democrats from energy-producing states — some of the party’s most vulnerable — for what they characterized as the party’s job-killing energy policies and overreach from the president.

The National Republican Senatorial Committee is launching a robocall campaign hitting Democratic Sens. Mary LandrieuMary Loretta LandrieuCongress needs to work to combat the poverty, abuse and neglect issues that children face Dems wrestle over how to vote on ‘Green New Deal’ Lobbying world MORE (La.), Mark WarnerMark Robert WarnerTikTok chief cancels Capitol Hill meetings, inflaming tensions Watchdog report finds FBI not motivated by political bias in Trump probe Ex-Rep. Scott Taylor to seek old Virginia seat MORE (Va.), Mark UdallMark Emery UdallDemocrats will win back the Senate majority in 2020, all thanks to President Trump Poll: Trump trails three Democrats by 10 points in Colorado The Hill's Morning Report — Trump and the new Israel-'squad' controversy MORE (Colo.) and Mark BegichMark Peter BegichAlaska political mess has legislators divided over meeting place Former GOP chairman Royce joins lobbying shop Lobbying world MORE (Alaska) on the new rule.

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Even Republican candidates in states where the proposal is likely to have minimal impact, like Michigan, went on the attack. There, Republican Senate candidate Terri Lynn Land knocked the proposal as an “enormous regulatory attack on coal,” and called on Rep. Gary Peters, the Democratic nominee for Senate, to oppose it.

But Democrats are doing their best to turn the issue into an asset. Kentucky Democratic Senate candidate Alison Lundergan Grimes lambasted the proposal and launched an advertising campaign declaring her opposition to Obama’s policies on coal.

Vulnerable Rep. Nick RahallNick Joe RahallWe shouldn't allow politics to impede disaster relief Break the cycle of partisanship with infant, child health care programs Clinton mulls role in 2018 midterms MORE (D-W.Va.) has been speaking out against the rule for weeks, and on Monday announced plans to introduce legislation to block its implementation.

And green groups, a key Democratic constituency and one that could have a pivotal role in this fall’s elections, were elated. League of Conservation Voters President Gene Karpinski lauded the new rule as “the biggest step we’ve ever taken for the biggest challenge we’ve ever faced.”

 

SENATE SHOWDOWN 

DEM SUPER-PAC LAUNCHING NEW ATTACKS: The Senate Majority PAC is out with new ads attacking GOP candidates in ArkansasColoradoMichiganNorth Carolina and New Hampshire.

TEA PARTY DEFENDS THE KOCHS: Tea Party Patriots has filed a complaint against Senate Majority Leader Harry ReidHarry Mason ReidNevada journalist: Harry Reid will play 'significant role' in Democratic primary The Hill's Morning Report - Sponsored by AdvaMed - A crucial week on impeachment The Hill's Morning Report — Pelosi makes it official: Trump will be impeached MORE (D-Nev.) with the Senate Ethics Committee to protest his repeated attacks against Charles and David Koch.

NRSC HITS DEMS ON EPA RULE: The National Republican Senatorial Committee (NRSC) is launching a robocall campaign tying Democratic Sens. Mary Landrieu (La.), Mark Warner (Va.), Mark Udall (Colo.) and Mark Begich (Alaska) to Monday’s proposed carbon emissions limits for power plants.

KY-SEN (MCCONNELL): Kentucky Democratic Senate candidate Alison Lundergan Grimes is hitting President Obama on coal with a six-figure, multimedia campaign that launched this week with ads placed in newspapers in the state’s top coal-producing regions.

MS-SEN (COCHRAN): State Sen. Chris McDaniel picked up a last-minute endorsement from the Family Research Council’s political action committee this weekend in his primary challenge to Sen. Thad CochranWilliam (Thad) Thad CochranMike Espy announces Mississippi Senate bid Biden has a lot at stake in first debate The Hill's Morning Report — Trump turns the page back to Mueller probe MORE (R-Miss.). Meanwhile, a murky group placed an ad in an African-American weekly newspaper that pitches Democratic voters on jumping in the GOP primary to vote for Cochran.

IA-SEN (OPEN): Sen. Marco RubioMarco Antonio RubioWhite House makes push for paid family leave and child care reform Tom Hanks weighs in on primary: 'Anybody can become president' GOP senator blocks bill aimed at preventing Russia election meddling MORE (R-Fla.) is in Iowa this evening to stump with with Iowa state Sen. Joni Ernst (R), the latest big-name Republican to help her campaign ahead of tomorrow’s primary.

Ernst has a big primary lead in recent polling.

NH-SEN (SHAHEEN): The Boston Globe has a new report outlining Republican Scott Brown’s murky income sources since leaving the Senate in 2013, highlighting in particular his lucrative ties to an apparent firearms manufacturer that hasn’t sold or made any guns and experts say could raise red flags with its business practices.

OK-SEN (OPEN): A group backing Rep. James Lankford in the Oklahoma Senate primary released a new poll, conducted by Randall Gutermuth for the Foundation for Economic Prosperity, that shows Lankford up over former state Speaker T.W. Shannon by 22 points, with 48 percent support among likely GOP primary voters to 26 percent for Shannon. Both are seen positively by about two-thirds of respondents.

AR-SEN (PRYOR): Sen. Cory Booker (D-N.J.) stumped with Sen. Mark PryorMark Lunsford PryorTom Cotton's only Democratic rival quits race in Arkansas Medicaid rollback looms for GOP senators in 2020 Cotton pitches anti-Democrat message to SC delegation MORE (D-Ark.) over the weekend, slamming Rep. Tom CottonThomas (Tom) Bryant CottonTikTok chief cancels Capitol Hill meetings, inflaming tensions Lawsuits pose new challenge for TikTok TikTok's leader to meet with lawmakers next week MORE’s (R-Ark.) vote against federal disaster relief funding.



BATTLE FOR THE HOUSE

FLOTUS SAYS HOUSE FLIP 'DOABLE': First lady Michelle ObamaMichelle LeVaughn Robinson ObamaMichelle Obama encourages Greta Thunberg after Trump attack: 'Ignore the doubters' Panel: Andrew Yang beats Joe Biden in ad dollars, Michelle Obama on GWB 'our values are the same' Michelle Obama, Ellen DeGeneres surprise DC elementary school with new computer lab, 0K donation MORE headlined a Massachusetts fundraiser for the Democratic Congressional Campaign Committee, and expressed optimism at the party’s chances of picking up the 17 seats it needs to take back the House. "That's a doable number," she said, if Democrats turn out this fall.

The DCCC on Monday launched Web ads accusing House Republicans of voting to keep taxpayer-funded lifetime healthcare for themselves. 

SCOTUS TO HEAR ALABAMA MAP CHALLENGE: The U.S. Supreme Court agreed Monday to hear a pair of challenges to Alabama’s legislative map from groups who accuse the state’s GOP-dominated legislature of racial gerrymandering.

CA-17 (HONDA): A union-backed PAC has been sending mailers attacking Democrat Ro Khanna and boosting Republican Vanila Singh (R) on the long-shot chance they can push her above him and help Rep. Mike Honda (D-Calif.) in the general election.

MI-3 (AMASH): Rep. Justin AmashJustin AmashGroup of House Democrats reportedly attended the White House ball Group of Democrats floating censure of Trump instead of impeachment: report Democrats gear up for high-stakes Judiciary hearing MORE (R-Mich.) leads primary challenger Brian Ellis (R) by 42 percent to 23 percent in a new poll conducted by MIRS.

NY-1 (BISHOP): American Action Network is launching television and cable ads tying businessman George Demos, battling state Sen. Lee Zeldin for the GOP nod in New York’s 1st District, to House Minority Leader Nancy Pelosi (D-Calif.). The two are vying for the chance to take on vulnerable Democratic Rep. Tim BishopTimothy (Tim) Howard BishopDem candidate 'struck by the parallels' between Trump's rise and Hitler's Dems separated by 29 votes in NY House primary Flint residents hire first K Street firm MORE.

NY-13 (RANGEL): House Minority Leader Nancy Pelosi (D-Calif.) endorsed incumbent Rep. Charles Rangel (D-N.Y.) on Monday as he fights to hold his seat against a primary challenger.



2016 WATCH

CLINTON: Hillary ClintonHillary Diane Rodham ClintonNo, the polls aren't wrong — but you have to know what to look for How to shut down fake Republican outrage over 'spying' on Trump More than 200,000 Wisconsin voters will be removed from the rolls MORE visited a Denver plastics factory on Monday, prior to a planned speech in the state that night, to chat with representatives from local small businesses and Denver public schools about training and recruitment programs for workers. Later this month, on June 10, she'll begin a nationwide book tour at a Barnes & Noble in New York City. She’s planning stops in Los Angeles, Chicago, Washington, D.C., Canada and Texas.

CAIN: Businessman Herman Cain, who dropped his 2012 presidential bid amid scandal surrounding his multiple affairs, left the door open this weekend to another run. “I do not know what the future holds, but I know who holds the future,” he said, "and I trust in God.”

PAUL: Sen. Rand PaulRandal (Rand) Howard PaulSunday Talk Shows: Lawmakers look ahead to House vote on articles of impeachment, Senate trial Pentagon to take bigger role in vetting foreign students after Pensacola shooting Overnight Defense: House passes compromise defense bill | Turkey sanctions advance in Senate over Trump objections | Top general says military won't be 'raping, burning and pillaging' after Trump pardons MORE (R-Ky.) is heading to Texas to keynote the state’s Republican Party Convention, the latest state convention the 2016 prospect has headlined.


QUOTE OF THE DAY 

“The president’s plan is nuts. There’s really no more succinct way to describe it.”

 Speaker John Boehner (R-Ohio) on President Obama’s new carbon regulations