A Republican presidential elector from Texas has decided to step down rather than cast his vote for Donald TrumpDonald John TrumpFlorida GOP lawmaker says he's 'thinking' about impeachment Democrats introduce 'THUG Act' to block funding for G-7 at Trump resort Kurdish group PKK pens open letter rebuking Trump's comparison to ISIS MORE.

Art Sisneros told Politico earlier this year that he was considering voting against Trump, but decided this week to resign instead.

“If Trump is not qualified and my role, both morally and historically, as an elected official is to vote my conscience, then I can not and will not vote for Donald Trump for President,” the Texas Republican said in a blog post.

"I believe voting for Trump would bring dishonor to God.”

Trump won Texas and its 38 Electoral College votes on Nov. 8.

Sisneros will be replaced with an alternate elector who will vote for Trump when the Texas electors convene on December 19.

"I will sleep well at night knowing I neither gave in to their demands nor caved to my convictions,” Sisneros said. "I will also mourn the loss of our republic.”

Several Democratic electors are also seeking to undermine the Electoral College system by voting for someone other than their state’s chosen nominee.

The group’s leader, Michael Baca of Colorado, is planning to launch a legal battle to unbind electors in the 29 states where they are required by law to vote according to the results in their respective states.