The investigation into Russia's influence in last year's presidential election has now spread to include Donald Trump's personal attorney. It comes as the president considers action on two controversial campaign promises. Josh Robin reports.

During the election, Michael Cohen often talked on behalf of Donald Trump.

But now, when it comes to Russia, Trump's top attorney is clamming up.

He told the Associated Press congressional requests for information were "poorly phrased, overly broad and not capable of being answered" — and is now expected to be subpoenaed.

Cohen joins other current and former top aides that are part of the Russia probe. That includes Trump son-in-law Jared Kushner, who reportedly tried to set up a back channel to Moscow during the transition — separate from U.S. agencies.

The White House refuses to say whether the President knew.

"What your question assumes is a lot of facts that are not substantiated by anything but anonymous sources that are so far being leaked out," said White House Press Secretary Sean Spicer.

That being said, I think Secretary Kelly and General McMaster have both discussed that in general terms, back channels are an appropriate part of diplomacy."

Kushner's representative says he is willing to share what he knows about these meetings with Congress or any other investigator.

Cohen didn't return a text.

Trump has also declined to talk at length about Russian influence — instead taking to Twitter to dismiss it as an excuse for the Democrats losing the election."

Trump also tweeted a Fox News story reporting the back channel was Russia's idea.

It relies on an anonymous source, a practice the president knocked just two days earlier.

Meanwhile, after his recent overseas trip, Trump still is leaving unresolved two campaign pledges:

One, moving the U.S. Embassy in Israel to Jerusalem.

And two, pulling the U.S. out of the Paris climate accords.

On the latter, the press secretary couldn't say whether Trump believes human behavior contributes to the warming of the climate.

"Honestly, I haven't asked him," Spicer said.