Story highlights Marco Rubio says he'll support Republican presidential nominee Donald Trump

But he says he stands by "everything" he said during his primary campaign

(CNN) Florida Sen. Marco Rubio is standing by his description of Donald Trump as "a con artist," but he says in a new interview he still plans to support the real estate mogul for president.

"I've stood by everything I ever said in my campaign," Rubio told the Miami Herald editorial board Monday when asked about his comments made during the Republican presidential primary earlier this year.

He said the race is "in a different place now" -- with voters facing a "binary choice" between Trump and Hillary Clinton.

"In our republic, while the presidency is powerful, there is a balance of power in this country, and a significant amount of it resides in the United States Senate," Rubio said. "It's one of the reasons why I seek to run again."

Read More