Senate Dems tie vulnerable Republicans to Trump in new ad
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The campaign arm of Senate Democrats launched its first paid advertisement Tuesday, aiming to tie vulnerable Republican incumbents and upstart Senate challengers to GOP presidential front-runner Donald TrumpDonald TrumpBudowsky: Trump’s war against truth GOP chairman calls for tighter sanctions on Russia Gorsuch hearings: A referendum on Originalism and corporate power MORE.

The Democratic Senatorial Campaign Committee (DSCC) ad intersperses clips of some of Trump’s incendiary remarks — with a lot of foul language bleeped out — with clips of incumbents and House members running for Senate saying they’ll support Trump if he’s the party’s nominee.

Among those who make an appearance: Sens. John McCainJohn McCainDem senator: House Intel chairman may have revealed classified info Overnight Defense: Defense chief pushes budget boost, new war authorization | Senate friction over potential NATO addition GOP rep pushes to lift Pentagon spending caps MORE (Ariz.), Rob PortmanRob PortmanRepeal of Obama drilling rule stalls in the Senate Chamber pressures red-state Dems to back Trump on cutting regs GOP govs: ObamaCare repeal bill shifts 'significant' costs to states MORE (Ohio), Kelly AyotteKelly AyotteFEC commissioner to Trump: Prove voter fraud Lewandowski saw no evidence of voter fraud in New Hampshire NH governor 'not aware’ of major voter fraud MORE (N.H.), Richard BurrRichard BurrSchumer: Trump must apologize for wiretapping claim Senate panel asks Trump ally Roger Stone to preserve Russia-related records Senate Intel Committee sets hearing on Russian election interference MORE (N.C.), Mark KirkMark KirkObamaCare repeal bill would defund Planned Parenthood Leaked ObamaCare bill would defund Planned Parenthood GOP senator won't vote to defund Planned Parenthood MORE (Ill.), Pat Toomey (Pa.), Roy BluntRoy BluntTop Dems prep for future while out of the spotlight Overnight Healthcare: Pressure mounts for changes to GOP ObamaCare bill Pressure mounts for changes to ObamaCare bill MORE (Mo.), and Ron JohnsonRon JohnsonGOP targets Baldwin over Wisconsin VA scandal The Hill's Whip List: Where Republicans stand on ObamaCare repeal plan Senate votes to strike down 'blacklisting rule' MORE (Wis.).

Portman, Ayotte, Kirk, Toomey and Johnson all face tough reelection prospects in a presidential year, when turnout could favor Democrats. Kirk and Johnson are the most endangered of the bunch, while Portman, Ayotte and Toomey are running in hotly contested swing states.

Also in the ad are Reps. Joe Heck (Nev.), who is running for the seat being vacated by Sen. Harry ReidHarry ReidThis obscure Senate rule could let VP Mike Pence fully repeal ObamaCare once and for all Sharron Angle to challenge GOP rep in Nevada Fox's Watters asks Trump whom he would fire: Baldwin, Schumer or Zucker MORE (D-Nev.), and David Jolly (Fla.) and Ron DeSantis (Fla.), who are in a crowded primary running for the seat being vacated by Sen. Marco RubioMarco RubioDem senator: House Intel chairman may have revealed classified info Five takeaways from Labor pick’s confirmation hearing GOP insists FBI probe won’t slow up Trump MORE (Fla.).

“Republicans running for U.S. Senate, running with Trump,” text from the ad states.

It then cuts to Trump saying: “What the hell are we doing?”

“Exactly,” the ad concludes.

The DSCC says the ad is the first in what will be a “sustained campaign” across television, radio and social media meant to tie Republicans running for Senate to the controversial GOP front-runner.

Democrats have a good chance of taking back the Senate in 2016 after losing their majority in the last cycle.

Republicans are defending 24 seats, compared to only 10 for Democrats. If Democrats net five seats, they’ll win back the Senate.

Many Republicans up for reelection are running in states President Obama carried in 2008 or 2012.