Story highlights Sen. Marco Rubio took to Twitter to join the #NeverTrump movement

Rubio quickly took the opportunity to push the movement into the spotlight and label Trump as a "con artist"

Washington (CNN) A Twitter push to oppose Donald Trump's presidential bid has gained a high-profile fan: Marco Rubio.

The Florida senator, who has tussled with the billionaire since Thursday's CNN Republican debate, joined the #NeverTrump movement on Twitter.

"Donald Trump is a con artist -- and he cannot be our nominee. #NeverTrump" Rubio tweeted on Friday.

Donald Trump is a con artist — and he cannot be our nominee. #NeverTrump https://t.co/3ZYQZraCfNhttps://t.co/8wm9ToY7El — Marco Rubio (@marcorubio) February 27, 2016

The Twitter hashtag has supporters from across the political spectrum -- including conservatives -- vowing to oppose Trump should he win the Republican nomination.

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