Mark Cuban engages in a nearly day-long Twitter war with Donald Trump's top lawyer

Billionaire business mogul Mark Cuban spent a significant portion of Wednesday, spilling over into Thursday, sparring with Donald Trump's top lawyer, Michael Cohen, in an extended Twitter war.

The back-and-forth started as Trump was beginning to deliver his highly anticipated immigration address in Arizona. Cuban posted a meme that outlined Trump as the more "crooked" candidate in the race between himself and Democratic nominee Hillary Clinton.

Cohen fired back a response.

"Cuban...you are delusional," he wrote. "Google from Clinton travelgate to Benghazi. The reason she is deemed untrustworthy ... and you need to stop listening to the lying #MSM."

"Now why is your boss considered even more untrustworthy?" Cuban shot back. "What should I Google Mikey?"

The lawyer, who's also appeared as a surrogate for Trump on television, most notably when he recently asked "which polls" Trump was trailing in to a baffled CNN host, called out those who sided with Cuban in the debate as "trolls" paid by Cuban.

"Come on Mikey," Cuban responded. "Trolls are people too! Don't you want to make America great for them too?"

The owner of the NBA's Dallas Mavericks and star of ABC's "Shark Tank" then accused Cohen of not watching Trump's bellicose speech, where he reiterated many of the same points on immigration that helped carry him through the Republican primary season.

"Looks like you didn't want to watch your boss's speech either," Cuban said. "Or are you multi tasking to try to show off?"

"Some of us can do more than one thing at a time...try it sometime!" Cohen responded, before accusing Cuban of being jealous of Trump.

Things continued to heat up from there.

"I'm so proud of you," Cuban wrote. "We could add more tasks and talk about the time you threatened to sue me?"

"Mikey. How nice is it to get time off from prepping for the Trump University lawsuits," he pressed on. "Can't just pay like Fla?"

Cuban was referencing a campaign donation made from Trump to Florida attorney general Pam Bondi when she was considering investigating the now-defunct and controversial Trump University in 2013.

Cohen then continued to insist that "trolls" with "5 followers" were "all paid by Cuban" to argue against the Trump lawyer.

"I wouldn't know how to pay trolls," Cuban said. "Can you explain to me how it's done?"

"Now we will just refer to you as 'lyin Mark,'" Cohen responded, nodding toward Trump's most successful nickname of the campaign season, which was aimed at Sen. Ted Cruz of Texas. "No wonder you support #CrookedHillary."

As the bout spilled over into Thursday morning, Cuban retweeted someone who said, sarcastically, that Cohen had been fired by Trump, according to "The BEST people."

"Dang @MichaelCohen212, now the best people are saying you were fired," Cuban posted. "I'll have the Breitbart link in a minute. SAD!"

Tensions appeared to soon cool off, as Cohen jokingly messaged Cuban asking if he's "hiring," to which Cuban asked Cohen to direct message "me what job you are looking for and your salary requirements."

Cuban endorsed Clinton at a rally in Pittsburgh, his hometown, last month. In that rally, he referred to Trump as a "jagoff" - a demeaning slang term frequently used in western Pennsylvania - during the event. The billionaire has ripped Trump repeatedly on social media in recent months.

He expressed interest in serving as either Trump's or Clinton's running mate earlier in the cycle before souring on the real-estate magnate's candidacy. In a Monday tweet, he wrote that he knew there "was no chance" being picked as a running mate "was happening."