Miami (CNN) A Florida Bar investigation into whether a Republican congressman improperly intimidated President Donald Trump's former attorney ahead of congressional testimony will proceed.

The investigation into Rep. Matt Gaetz's conduct has advanced to a grievance committee for further investigation and action, Francine Andia Walker, a spokeswoman for the bar, told CNN Wednesday.

In February, just hours ahead of Michael Cohen's public testimony before the House Oversight Committee, Gaetz -- a Trump ally -- tweeted at Cohen, "Do your wife & father-in-law know about your girlfriends? Maybe tonight would be a good time for that chat. I wonder if she'll remain faithful when you're in prison. She's about to learn a lot..."

The comments sparked outrage among Democrats and ethics experts. Gaetz, who didn't offer any proof for his claims, later deleted his tweet and issued an apology, saying he didn't intend to threaten Cohen.

The new phase of the process could take three to six months, according to bar guidelines, and a number of different outcomes are possible, ranging from a finding of "no probable cause" and "no discipline," to having to go before the Florida Supreme Court.

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