House Minority Leader Nancy Pelosi said Sunday that a proposed constitutional amendment limiting marriage to heterosexual couples would be "an act of discrimination" against gays. Noting that some Republicans in Congress joined Democrats in opposing a federal ban gay marriage, Pelosi told "Fox News Sunday," "There were many Republicans who did not want to taint the Constitution with an act of discrimination. Many Republicans fell into that category." The San Francisco Democrat made her comments while claiming that Sen. John Kerry was unfairly painted as pro-gay marriage during the presidential campaign. "President Bush and Sen. Kerry were substantively at the...