Ben Carson's endorsement of Donald Trump comes with a few caveats

Dr. Ben Carson is endorsing Donald Trump for president, but he isn't exactly throwing his full support behind him.

"Even if Donald Trump doesn't end up being a good president ... I didn't see a path for Kasich, who I liked, or Rubio. ... Is there another scenario I would've preferred? Yes, but that scenario isn't available," Carson said.

See more of Carson through the years:

The Newsmax TV anchor asked, "With one of the other candidates you mean?" To which Carson replied, "Yes."

Carson made those remarks to Newsmax TV roughly two weeks after dropping out of the GOP presidential race and, somewhat surprisingly, endorsing Trump.

SEE ALSO: Ex-Republican presidential candidate Carson backs Trump

But his comments in the interview about Trump promising him an "advisory role" in the administration should he win in November reinforced previous suspicions that Carson endorsed the Republican front-runner in exchange for a job.

Trump currently leads the rest of the GOP field going into Mega Tuesday and could further distance himself with a strong showing.

WATCH: Ben Carson endorses Donald Trump: