John McCain wins the Republican Party primary election to become the nominee in the US Senate election in Arizona.
Sources: Fox News
Sources: Fox News
U.S. Senator and 2008 presidential nominee John McCain (R–AZ) dies at the age of 81.
U.S. Senator John McCain (R–AZ) has announced that he will not continue his cancer treatment.
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.
Ben Carson suspends his campaign for the Republican Party nomination. The expected announcement was made during a speech at the 2016 Conservative Political Action Conference (CPAC).
Republican U.S. Senator David Vitter and Democratic state Representative John Bel Edwards top two Republican candidates for spots in the November 21 runoff election. Edwards wins 40 percent and Vitter 23 percent of the primary vote, according to unofficial returns.
The Republican Party-controlled U.S. House of Representatives votes to raise the government's borrowing limit for the next year, without attaching conditions, and sends the measure to the Senate for approval.
Richard Mourdock wins a Republican primary election in the US state of Indiana defeating incumbent Senator Richard Lugar. [http:--nbcpolitics.msnbc.msn.com-_news-2012-05-08-11604125-nbc-news-projects-lugar-defeated-in-indiana-primary?lite (MSNBC)]date=April 2020
Republicans in the Wisconsin Senate vote to remove collective bargaining rights from state employees separate from the budget to end the impasse over the state budget with no Democrat Senators present.
US Senator Lisa Murkowski concedes defeat in the Alaskan Republican primary election to challenger to Joe Miller.
Nikki Haley wins the Republican Party primary to be the Republican candidate in the South Carolina gubernatorial election in the United States.