Senior Democrats moved quickly this weekend to try and turn Mitt Romney’s choice of Rep. Paul Ryan (R-Wis.) as his running mate into a millstone around the former Massachusetts governor’s neck.

Democrats had been suggesting in recent days that they would welcome a Ryan selection, saying the House Budget chairman’s controversial overhauls of entitlement programs would be a political plus for them.

And once the choice became official, President Obama’s campaign team and senior lawmakers in the party moved to not only emphasize the spending restraint and Medicare overhaul in Ryan’s budgets – but also to play up the GOP ticket’s ties to a Republican House that is both unpopular and a favorite presidential punching bag.