Sen. Joe ManchinJoseph (Joe) ManchinRepublicans, Trump Jr. signal support for embattled West Virginia governor Critics say Interior's top lawyer came 'close to perjury' during Hill testimony The Hill's 12:30 Report — Presented by MAPRx — Trump takes heat for remarks on help from foreign governments MORE (D-W.Va.) admitted President Obama's remarks that "every single one" of his policies was on the ballot this fall complicated red-state Democratic senators' reelection efforts.

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"He makes it more challenging, let's put it that way," Manchin said when asked about Obama's comments on MSNBC Saturday morning.

Republicans have pounced on the president's remarks  — Sens. Pat RobertsCharles (Pat) Patrick RobertsEPA exempts farms from reporting pollution tied to animal waste Conservatives spark threat of bloody GOP primaries Juan Williams: Anti-abortion extremism is on the rise MORE (R-Kan.), Mitch McConnellAddison (Mitch) Mitchell McConnellBiden, Eastland and rejecting the cult of civility California governor predicts 'xenophobic' GOP will likely be third party in 15 years This week: Congress set for clash on Trump's border request MORE (R-Ky.) and former Sen. Scott Brown (R-Mass.) have all used them in recent attack ads.

Manchin has been working to help reelect fellow red-state senators, recently stumping with Sen. 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 (D-La.). He praised her and fellow red-state Sens. Mark BegichMark Peter BegichFormer GOP chairman Royce joins lobbying shop Lobbying world Dem governors on 2020: Opposing Trump not enough MORE (D-Alaska), Mark PryorMark Lunsford PryorMedicaid rollback looms for GOP senators in 2020 Cotton pitches anti-Democrat message to SC delegation Ex-Sen. Kay Hagan joins lobby firm MORE (D-Ark.) and Kay HaganKay Ruthven HaganTillis trails Democratic challenger by 7 points in North Carolina poll North Carolina businessman will challenge Tillis in GOP primary Embattled senators fill coffers ahead of 2020 MORE (D-N.C.) as "four good Americans" who are "right in the moderate middle." 

He then put distance before their and his views and "what the Washington crowd believes," knocking President Obama for "moving further to the left than my state ever will." 

Manchin has long been critical of Obama — he famously shot the Cap & Trade bill with a rifle in a 2010 campaign ad — which has helped him maintain popularity in an increasingly Republican state.

However, it looks like some red-state Democrats may not be able to get enough distance from the president, as Republicans' hopes for a Senate takeover have brightened.

 This post was updated at 2:10 p.m.