Sources: BBC
A record number of electors break ranks and do not vote for their assigned candidate. Two electors from Texas vote for John Kasich and Ron Paul. Some of the electors from Washington cast three votes for Colin Powell and one vote for Faith Spotted Eagle. One elector from Hawaii votes for Bernie Sanders. 2016-12-19
Vermont Senator Bernie Sanders endorses Democratic Party rival Hillary Clinton for president at a rally in New Hampshire, effectively suspending his presidential campaign. 2016-07-12
Vermont Senator Bernie Sanders wins the Indiana Democratic primary. 2016-05-3
Registered Democratic voters in the U.S. state of Wyoming gather, by county, for the Wyoming Democratic caucuses. Bernie Sanders is projected to win. 2016-04-9
Voters in the U.S. state of Wisconsin go to the polls for a primary election with Ted Cruz winning the Republican Party contest and Bernie Sanders winning the Democratic Party primary. 2016-04-5
Senator Bernie Sanders is the projected winner in Alaska, Washington and Hawaii. 2016-03-26
Bernie Sanders concedes the Missouri primary to Hillary Clinton, who led by 1,531 votes, 0.2 percent of those counted. Sanders says he will not ask for a recount, an option he had because the result is under the state's requirement, 0.5 percent — one-half of one percent. The Republican contest is too close to call as Donald Trump leads Ted Cruz by a similar 0.2 percent. 2016-03-17
In the Missouri Primary, media outlets have held off calling yesterday's races due to the extremely close results. Donald Trump and Hillary Clinton lead in their party's vote, but by just two-tenths of 1 percent ahead of Ted Cruz and Bernie Sanders, respectively. Missouri law states a recount may be requested if the margin is less than half a percentage point. Either Cruz or Sanders or both can request a recount. These results are unofficial, until they’re certified by the Missouri Secretary of State, which reportedly could take up to four weeks. Trump leads by about 1,700 votes and Clinton's edge is about 1,500. The state also needs to count the remaining absentee and provisional ballots; the deadline for overseas ballots is noon Friday. 2016-03-16
Former New York City mayor Michael Bloomberg is seriously considering a possible independent presidential run if Donald Trump or Texas Senator Ted Cruz face Vermont Senator Bernie Sanders in the general election. 2016-01-23
Nominally independent Senator Bernie Sanders from Vermont announces that he will be seeking the Democratic Party nomination in the US presidential election. 2015-04-29