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 TrumpTrump Education pick won't say if guns should be allowed in schools Senate Finance panel to hold Price hearing next week Trump lands in DC for pre-inaugural dinner 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 McCainOvernight Cybersecurity: Obama commutes Chelsea Manning's sentence | A malware mystery Overnight Defense: Obama commutes Manning's sentence | Boeing sees 'progress' on Air Force One costs | McCain's 0B defense budget McCain: Leak of Trump dossier ‘totally wrong’ MORE (Ariz.), Rob PortmanRob PortmanSenators introduce dueling miners bills Schumer puts GOP on notice over ObamaCare repeal Trump, House GOP could clash over 'Buy America' MORE (Ohio), Kelly AyotteKelly AyotteTen rumored Trump Cabinet picks who didn't get a job Sasse, Perdue join Armed Services Committee Avid pilot among GOP senators joining Transportation committee MORE (N.H.), Richard BurrRichard BurrSenators introduce dueling miners bills Trump education pick to face Warren, Sanders Senate Intel panel to probe Trump team's ties to Russia MORE (N.C.), Mark KirkMark KirkGOP senator: Don't link Planned Parenthood to ObamaCare repeal Republicans add three to Banking Committee Juan Williams: McConnell won big by blocking Obama MORE (Ill.), Pat Toomey (Pa.), Roy BluntRoy BluntTrump told of unsubstantiated Russian effort to compromise him Overnight Tech: Tech listens for clues at Sessions hearing | EU weighs expanding privacy rule | Senators blast Backpage execs A bitter end to the VA status quo MORE (Mo.), and Ron JohnsonRon JohnsonRight renews push for term limits as Trump takes power Overnight Tech: Tech listens for clues at Sessions hearing | EU weighs expanding privacy rule | Senators blast Backpage execs Senate poised to confirm Trump's DHS pick after friendly hearing 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 ReidDems want Sessions to recuse himself from Trump-Russia probe Ryan says Trump, GOP 'in complete sync' on ObamaCare Congress has a mandate to repeal ObamaCare 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 RubioRubio wades into Trump-Lewis feud 19 companies that Trump has tweeted about Ex-Dem gov: I would have picked Giuliani over Tillerson 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.