Sen. Barbara Boxer, left, (D) of California and Republican candidate for Senate Carly Fiorina debate on the campus of Saint Mary's College, on Sept. 1, in Moraga, California. Justin Sullivan/AP
DC mayoral candidate Council Chairman Vincent Gray supporters rally at the Newseum. The debate was held at The Newseum's Walter and Leonore Annenberg Theater in Washington DC on September 1. Among the topics discussed were unemployment, public safety and schools. Jeff Malet/Newscom
Sen. Lisa Murkowski gives a concession speech at her campaign headquarters in Anchorage, Alaska, August 31, one week after primary election voters narrowly chose upstart Joe Miller to be the Republican candidate for the Senate seat. Bill Roth/Anchorage Daily News/MCT/Newscom
Joe Miller Jr. (l.) campaigns on behalf of his father, Senate candidate Joe Miller, at the corner of Airport Way and the New Steese Highway on August 24. John Wagner/News-Miner/Newscom
Sen. Barbara Boxer holds a post-election news conference at the Hyatt Regency Century Plaza on Sept. 2. Aurelia Ventura/La Opinion/Newscom
Young voters flexed their political muscle in 2008, but getting those voters back to the polls this year will be hard for Democrats. To connect with young voters, campaigns and candidates of both parties are using social-networking tools such as Facebook and Twitter. 'In the weeks leading up to the election, my Facebook page was just completely lit up with politics and people debating the various positions on issues,' said Ben Anderstone of Tacoma, Washington. Mark Harrison/Seattle Times/MCT/Newscom
DC Mayor Adrian Fenty supporters rally at the Newseum. Mayor Adrian Fenty and Vincent Gray have just finished a debate, two weeks before their crucial September 14 Democratic primary. Jeff Malet/Newscom
Republican candidate for Senate Carly Fiorina looks on during a debate with Sen. Barbara Boxer (D) of California on the campus of Saint Mary's College on Sept. 1. Justin Sullivan/AP
Christine O'Donnell greets supporters during meeting of the '9/12 Delaware Patriots' at the Bowers Beach Fire Hall, on Sept. 1, in Bowers, Delaware. O'Donnell will face Republican Congressman Mike Castle in a primary election in her bid for the Senate seat formerly held by now Vice President Joe Biden. Gary Emeigh/MCT/Newscom
DC Mayor Adrian Fenty (r.) and Council Chairman Vincent Gray (l.) debate two weeks before their crucial September 14 Democratic primary. Jeff Malet/AP
At least 60,000 mostly Kurdish refugees have entered Turkey since Thursday after Islamic State militants surrounded a Kurdish stronghold in northern Syria. Some are calling for US airstrikes to stop the group's advance.
ByDominique Soguel, Correspondent
Tens of thousands of Syrians have crossed into Turkey in recent days, fleeing an Islamic State offensive that has opened up another front in Syria's civil war as the US weighs a bombing campaign there.