U.S. House Rep. Mark Green will step down on July 20, leaving Tennessee's 7th Congressional District seat vacant for a special election later this year.

The campaign for the forthcoming special election to succeed Rep. Mark E. Green is heating up as the Tennessee Republican last week formalized his plans to step down. Green said in a video on social media Friday that he would be resigning his 7th District seat and relinquishing his chairmanship of the Homeland Security Committee

In a video statement on social media, the former Nashville mayor takes a swipe at Green for leaving Congress just a few months after winning reelection