(CNN) – Barack Obama’s campaign launched a television ad critical of Hillary Clinton Saturday in Wisconsin, the fourth negative spot between the two Democratic presidential campaigns in the past four days.
The ads have all centered around Obama’s decision not to debate Clinton in the state before the primary vote on Tuesday. The Clinton spots have tied that decision to what it says are flaws in Obama’s stands on issues like health care and Social Security. Obama’s team has made similar charges about Clinton’s positions, and defended the Illinois senator’s decision.
“After 18 debates, with two more coming, Hillary says Barack Obama is ducking debates? It's the same old politics,” says the announcer in “Same Old Politics,” criticizing the New York senator’s proposal for universal health care and praising Obama’s position on retirement benefits and ending tax breaks for oil companies.
“Tired of the same old politics? Vote for change we can believe in,” says the announcer in the 30-second spot.
On Wednesday, Hillary Clinton’s campaign unveiled the race’s first negative spot in Wisconsin, criticizing Obama for not agreeing to more debates.
Obama’s campaign struck back the next day with an ad that responded to Clinton’s, calling the original spot an instance of "the same old politics of phony charges and false attacks." On Friday, Clinton’s campaign debuted another ad, a response to what it called “false attacks” in the Obama spot.
Wisconsin's voters head to the polls next Tuesday, February 19.
–CNN Associate Political Editor Rebecca Sinderbrand