JACKSON (AP) — Republican incumbent Steven Palazzo and his challenger, former U.S. Rep. Gene Taylor, were tightly bunched in their party’s 4th District primary Tuesday.

Meanwhile, Mississippi congressmen Bennie Thompson and Gregg Harper cruised to victory in their party primaries

Thompson, a Democrat from Bolton, won his party’s nomination in the 2nd District. Harper, from Pearl, won the Republican primary in the 3rd District.

Democrat Ron Dickey of Horn Lake defeated Rex Weathers of Glen in the 1st District Democratic primary, setting up a challenge to incumbent Republican Alan Nunnelee and others in the general election.

Matt Moore of Gulfport won the Democratic nomination in the 4th District. Douglas MacArthur “Doug” Magee of Mendenhall and Dennis Quinn of Magnolia went to a June 24 runoff in the 3rd District Democratic primary.

While party primaries were taking place in all four of Mississippi’s U.S. House districts, Tuesday’s headline matchup was in south Mississippi’s 4th Congressional District, where the Republican primary featured Palazzo and four challengers, including Taylor.