Marchant is the fourth Texas Republican congressman to announce his retirement in the past two weeks.
The Tea Party's signature policy success faces its potential demise as the Trump Administration agrees to a big-spending budget deal with House Democrats.
With the release of second-quarter fundraising numbers, the prospects are shifting for these Texas candidates and lawmakers.
Only nine seats shy of the majority in the state house, Texas Democrats will attempt to flip this Dallas and Highland Park district next year.
The 23rd congressional district of Texas is one of the most competitive in the nation. It looks to remain so going into the 2020 election.
