MILWAUKEE — A pair of swing state Republican governors who recently signed into law measures to tighten abortion laws in their states sought to downplay those efforts Friday, while Democratic governors eagerly singled out GOP maneuverings on social issues, illustrating the delicate balancing act some Republicans must perform on divisive issues.

"In the last two and a half years, I have signed hundreds and hundreds of bills into law; about 96 percent of them have been bipartisan," said Wisconsin Gov. Scott Walker (R) in an interview on the sidelines of the National Governors Association meeting here. "I think I've signed four or five that have to do in any way with abortion."