Election night blog: Obama calls for unity
Mitt Romney
Credit: CNN
Former Massachusetts Gov. Mitt Romney addressed supporters in Boston after conceding defeat to President Obama.
Related:
With big win, Cruz and wife reflect on campaign, changes ahead
Election over, US stocks dip on challenges to come 
Watch President Obama's victory speech
Obama: 'We have picked ourselves up,' fought back
Romney: 'This is a time of great challenges' 
Dallas Democrats sweep all eight county offices again
Watch Mitt Romney's concession speech
Davis edges Shelton in bitter State Senate race
Cruz declares victory in US Senate race
Democrat Paul Sadler concedes defeat in U.S. Senate race
Tea party darling Cruz wins US Senate race
Veasey wins new US House seat in North Texas' District 33
Social media's impact on the 2012 election
