Inside Donald Trump and Speaker Johnson's mutually beneficial relationship

Speaker Mike Johnson, R-La., was in New York for various events when he reached out to former President Trump to inform him he would be at the Manhattan courthouse, where Trump's criminal trial was taking place the very next morning.

Johnson made the decision himself and contacted Trump directly, a source close to the speaker told Fox News Digital. Multiple people said he rode with Trump in his motorcade on Tuesday morning.

"I came here… today on my own to support President Trump because I am one of hundreds of millions of people and one citizen who is deeply concerned about this, so I’m glad to be here," he told reporters afterward.

Johnson was the highest-ranking federal lawmaker to show up at Trump’s criminal proceedings so far – a public symbol of the staunch alliance the two have built since Johnson became speaker after a tumultuous series of events in October.

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Multiple people close to Trump and Johnson told Fox News Digital that they speak frequently, with one GOP lawmaker estimating they talk "at least weekly" but added "it depends on the issue."

The source close to Johnson told Fox News Digital that the speaker keeps Trump in the loop on the major moves being made in the House of Representatives.

Those same allies stressed that the relationship, a close one for an elected congressional leader and their party’s presumptive presidential nominee, is positive for both the House and the GOP as a whole.

"It helps both sides. It helps the House, but it also helps the party, because you're coming in from two different directions at the same general goal," Rep. Ryan Zinke, R-Mont., who previously served in Trump’s Cabinet, told Fox News Digital.

Zinke