The vote on removing President Trump was barely over Wednesday before left-leaning advocacy organizations vowed to remind Coloradans how Republican Sen. Cory Gardner came down on the issue.

The state’s junior senator is one of the most endangered Republicans up for reelection this year in a state where Trump hasn’t rated well in early polling. 

Gardner stood with the president.

“Cory Gardner’s moral ineptitude when it comes to performing his Constitutional duty and calling for a fair impeachment trial will be met with Coloradoans (sic) turning out, en masse, at the ballot box in 2020,” said Kait Sweeney of the national Progressive Turnout Project.

“He has failed to represent Colorado as an impartial juror, shirked his responsibility as a statesman, and latched himself to Donald Trump’s coattails. Colorado voters will remember his vote to acquit and will hold Gardner accountable come Election Day.”

Gardner is among six vulnerable Republican senators – joining counterparts in Arizona, Iowa, Maine, North Carolina and South Carolina that the Progressive Turnout Project targeted by $400,000 digital ad campaign “for their lack of courage to call for witnesses and a fair trial of Trump,” the organization said Wednesday afternoon.

The group says it’s also spending $45 million this year on get-out-the-vote efforts in 16 presidential and Senate battleground states with a goal of knocking on more than 7.1 million doors.

That includes 66 field offices and more than 1,100 staff.

Another liberal group, MoveOn.org, also announced its Colorado TV and digital push back on Senate Republicans in Colorado, Arizona and Maine over Wednesday’s vote. That campaign also will include Senate Majority Leader Mitch McConnell’s home state of Kentucky.

“Republican Senators may have failed to do their job, but voters won’t fail to do ours,” MoveOn Political Action executive director Rahna Epting said in a statement. “We have one message for Donald Trump and the Senate Republicans who time and time again have helped cover up his abuses: We will see you at the ballot box.” 

Here is the TV ad set to air in the Denver media market, on top of digital ads statewide.