The event is scheduled for April 23, two weeks before Indiana's May 8 primary.
Indiana Rep. Todd Rokita is attacking a Republican Senate primary rival over a gas tax hike the former state lawmaker voted for this year.
Messer's family owns homes in Virginia and Tennessee. But they sold their home in Indiana in 2014.
Little-known state Rep. Mike Braun is putting $800,000 of his own money towards his campaign for U.S. Senate.
A political analyst says Sen. Joe Donnelly's position on the GOP effort to overhaul federal tax policy could be a key issue in his re-election bid next year.
Congress passed a two-year suspension of the tax in 2015, but the medical device industry wants a permanent repeal.
Two Republican congressmen seeking to unseat Sen. Joe Donnelly are criticizing his response to Democrats' questioning of a federal appeals court nominee.
Political analysts say Donnelly’s inclusion at President Trump's tax reform discussion is a boost to the Hoosier Democrat's re-election campaign.
The two GOP Indiana congressmen running for the Senate say they voted against a $15 billion disaster aid package because it allows too much deficit spending.
A former Indiana lawmaker and state agency head is running for Congress, billing himself as a "conservative business leader."