One candidate was in Texas, the other in California, but it was the state of Wisconsin that loomed large over U.S. presidential campaigning on Wednesday, and, not surprisingly, Mitt Romney and President Barack Obama sparred over its significance.

Wisconsin Republican Governor Scott Walker’s victory in a recall vote was a cause célèbre for conservatives and Romney attempted to turn it into support for his campaign to oust Obama in the November 6 election, even though he had largely steered clear of the state in the midst of the struggle.