Donald Trump

Updated at 7:30 p.m. ET

A government whistleblower received information from "multiple" officials that President Trump "is using the power of his office to solicit interference from a foreign country in the 2020 U.S. election."

An unclassified version of the whistleblower's complaint, made public Thursday by the House intelligence committee, says that the president's lawyer, Rudy Giuliani, "is a central figure in this effort. Attorney General [William] Barr appears to be as well."

Updated at 12:08 p.m. ET

The nation's top spy told lawmakers on Thursday that he supports the whistleblower whose complaint sparked the Ukraine affair but said he struggled to deal with how to handle the case inside the Trump administration.

Acting Director of National Intelligence Joseph Maguire told the House intelligence committee in an open hearing that he believed the whistleblower and the spy world's inspector general had acted in good faith and that he has tried to handle a unique situation as best he could.

Updated at 9:03 p.m. ET

Updated at 5:25 p.m. ET

President Trump told Ukraine's president that "a lot of people want to find out" about the activities of former Vice President Joe Biden's family in Ukraine and asked its leader to be in touch with lawyer Rudy Giuliani and Attorney General Bill Barr.

That's according to a briefing for correspondents about the contents of the July 25 phone call, on Wednesday at the Justice Department.

Updated at 7:48 p.m. ET

After months of expressing caution on a push for impeachment, House Speaker Nancy Pelosi launched a formal impeachment inquiry into President Trump Tuesday.

"The president must be held accountable," Pelosi said. "No one is above the law."

The landmark move comes after controversy over a phone call Trump had with the newly elected Ukranian leader in July and reporting that the president pressured him to investigate political rival Joe Biden.

Updated at 6:08 p.m. ET

President Trump vowed on Tuesday that he will release a transcript of his phone call from earlier this year with Ukraine's president.

The July 25 call is at the heart of a rapidly intensifying controversy over whether Trump improperly pressured another country to investigate a political opponent, former Vice President Joe Biden.

Updated 3:34 p.m. ET

The Trump administration has escalated its fight with California over environmental regulations.

Environmental Protection Agency Administrator Andrew Wheeler sent a letter Monday to the California Air Resources Board threatening to withdraw billions of dollars in federal highway money unless the state clears a backlog of air pollution control plans.

Updated at 3:43 p.m. ET

Former Vice President Joe Biden called for President Trump's impeachment unless the White House complies with congressional requests for information about a call the president made to a Ukrainian leader.

"We have a president who believes there is no limit to his power," Biden said. "We have a president who believes he can do anything and get away with it. We have a president who believes he is above the law."

Updated at 12:30 p.m. ET

At the U.N. General Assembly in New York on Tuesday, President Trump told world leaders to reject "globalism" and to look out for the interests of their own countries first.

"The future does not belong to globalists; it belongs to patriots," Trump said.

Tuesday marked Trump's third address to the General Assembly as president. As he has done in the past, Trump used his remarks to the international organization to make the case for his "America first" style of diplomacy that puts nationalism ahead of multilateral efforts.

Updated on Oct. 2 at 11:45 a.m. ET

In a July 25 conversation with Ukrainian President Volodymyr Zelenskiy, President Trump asked for an investigation of former Vice President Joe Biden and his son Hunter Biden for their activities in Ukraine several years ago.