After posting wins in Louisiana and Kentucky's presidential nominating contests, Republican front-runner Donald Trump says it is "probably time" for rival Marco Rubio to drop out of Republican race for president.

The Florida senator finished no better than third in any of Saturday's primary elections and caucuses. Meanwhile, Texas Sen. Ted Cruz won in Maine and Kansas.

Rubio campaign spokesman Alex Conant told the Associated Press after Trump's statement at a press conference late Saturday night in West Palm Beach that the billionaire's call shows he knows Rubio has sway.

"Trump knows that Marco has the momentum in Florida and is afraid because he knows losing those 99 delegates to Marco will be a turning point in this race," Conant said.

He went on to highlight Trump skipped speaking at an annual gathering of conservative activists in suburban Washington Saturday and instead made a campaign stop in Kansas.

"Trump's history as a con artist is being exposed. He canceled CPAC today because he's not a conservative."

During his victory rally, Trump congratulated Cruz for his two wins, but called Kentucky and Louisiana "the big ones." He joked that it's natural that Cruz won Maine because, "it's very close to Canada, let's face it."

Worth noting: Cruz camp has no events confirmed for next 10 days. A big 10 days. Waiting til the last moment to pick states/day allotments. — Vaughn Hillyard (@VaughnHillyard) March 6, 2016

Trump has questioned Cruz's eligibility to be president, because the Texas lawmaker was born on Canadian soil. Many legal experts have said that Cruz is a natural born citizen who is eligible to serve as president.

Trump's girth also made a resurgence at the press conference when a reporter brought up his reference to his "manhood" at this week's GOP debate.

This just happened: "Do I hit the ball hard? Do I hit it long? Is Trump strong?" — Brett LoGiurato (@BrettLoGiurato) March 6, 2016

In response, the crowd booed and Trump touted his golf game, pointing to members of Trump International Golf Club—where the press conference took place— for backup. He noted that the subject never would have been discussed if Rubio hadn't criticized the size of his hands in the first place.

Political discourse in 2016.

Mashable contributed to this report.

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