Republicans are taking

 Republicans are taking

 aim at vulnerable Senate Democrats up for re-election in 2024, accusing them in a new ad campaign of putting Medicare and Social Security at risk with their support of the $1.9 trillion Democrat-backed American Rescue Plan amid the coronavirus pandemic.

"Senate Democrats' reckless spending is threatening Social Security and Medicare. We are going to hold them accountable for lying to the American people and putting these two popular programs at risk,"

 National Republican Senatorial Committee (NRSC) spokeswoman Maggie Abboud told Fox News Digital ahead of the campaign's launch.