Senator: Prostitution scandal wider than believed

Several small groups of Secret Service employees separately visited clubs, bars and brothels in Colombia prior to a visit by President Barack Obama last month and engaged in reckless, "morally repugnant" behavior, Sen. Susan Collins says.

Obama to address Air Force graduates in Colorado

Fresh off back-to-back international summits, President Barack Obama is delivering the commencement address at the U.S. Air Force Academy, his annual speech to service academy graduates.

Romney wins Kentucky primary, leads in Arkansas

LITTLE ROCK, Arkansas (Reuters) - Republican presidential hopeful Mitt Romney won his party's primary in Kentucky on Tuesday and took a commanding lead in Arkansas, as he got closer to clinching the GOP nomination, official tallies showed. The largely ceremonial victory by Romney came as the Democratic primaries saw President Barack Obama lose some voters to a mostly unknown candidate in Arkansas and the ballot option "uncommitted" in Kentucky, in an apparent sign of voter dissatisfaction with Obama in those conservative Southern states. ...