On February 23, the Missouri House passed SB 773, a bill to move the filing deadline for the non-presidential primary from March 27 to April 24. The bill had already passed the Senate. However, the House amended the bill, and sent the bill back to the Senate. The Senate did not vote on the amended bill, because two Senators engaged in a filibuster, to express their extreme displeasure with a new State Senate redistricting plan. See this story.