Senate Dems tie vulnerable Republicans to Trump in new ad
© Getty

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 John TrumpDemocrats' CNN town halls exposed an extreme agenda Buttigieg says he doubts Sanders can win general election Post-Mueller, Trump has a good story to tell for 2020 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 Sidney McCainWhy did Mueller allow his investigation to continue for two years? If you don't think illegal immigrants are voting for president, think again 10 factors making Russia election interference the most enduring scandal of the Obama era MORE (Ariz.), Rob PortmanRobert (Rob) Jones PortmanSherrod Brown asks Trump Fed pick why he referred to Cleveland, Cincinnati as 'armpits of America' Senate Republicans tested on Trump support after Mueller GOP senator wears shirt honoring Otto Warmbier at Korean DMZ MORE (Ohio), Kelly AyotteKelly Ann AyotteNew Hampshire senator to ask 2020 Dems to back repeal of state residency law Schultz recruiting GOP insiders ahead of possible 2020 bid Bottom Line MORE (N.H.), Richard BurrRichard Mauze BurrGOP senator: 'No problem' with Mueller testifying Collins backs having Mueller testify Graham says he's 'not interested' in Mueller testifying MORE (N.C.), Mark KirkMark Steven KirkThe global reality behind 'local' problems Dems vow swift action on gun reform next year This week: Trump heads to Capitol Hill MORE (Ill.), Pat Toomey (Pa.), Roy BluntRoy Dean BluntGOP senator: 'No problem' with Mueller testifying The Hill's Morning Report — Mueller aftermath: What will House Dems do now? Graham says he's 'not interested' in Mueller testifying MORE (Mo.), and Ron JohnsonRonald (Ron) Harold JohnsonGOP senator: 'No problem' with Mueller testifying The Hill's Morning Report — Category 5 Mueller storm to hit today GOP senators double down on demand for Clinton email probe documents 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 Mason ReidSenate buzzsaw awaits 2020 progressive proposals Sanders courts GOP voters with 'Medicare for All' plan Glamorization of the filibuster must end 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 Antonio RubioDems plot aggressive post-Mueller moves, beginning with McGahn Senate Republicans tested on Trump support after Mueller Cuban negotiator says Trump's efforts to destabilize Cuba's government will fail 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.