Biden wants Congress to take action on gun reform

Trump's legal team has responded to a letter from lead House impeachment manager Jamie Raskin, R-Md., requesting former President Donald Trump to testify before or during his Senate impeachment trial next week and rejected the idea of Trump appearing.

In a short response, Trump's attorneys called the request a "public relations stunt."

"The use of our Constitution to bring a purported impeachment proceeding is much too serious to play these games," wrote Trump attorneys Bruce Castor and David Schoen.

While the letter did not answer directly the question of whether Trump will testify, Trump spokesman Jason Miller told ABC News' Chief Washington Correspondent Jonathan Karl, "The president will not testify in an unconstitutional proceeding."

-ABC News' Chief Washington Correspondent Jonathan Karl and Katherine Faulders

Biden gave his first major foreign policy address at the State Department on Thursday and made several announcements marking a stark shift from his predecessor's "America First" policy.

Biden said he approved an executive order to begin the process to raise the maximum number of refugees allowed into the U.S. every year to 125,000, beginning in fiscal year 2022, which for the U.S. government begins Oct. 1, 2021. Former President Donald Trump had slashed it to 15,000.

"It's going to take time to rebuild what has been so badly damaged, but that's precisely what we're going to do," he said.

Biden announced the U.S. is "ending all support" for the Saudi-led military campaign in Yemen, saying, "This war has to end." The halt would not include U.S. action against al-Qaida in the Arabian Peninsula. Biden said he's also naming a special envoy for Yemen.

Unlike his predecessor, Biden established a tough relationship with Russia and called on the Kremlin to release Alexey Navalny.

"I made it clear to President Putin in a manner very different from my predecessor, that the days of the United States rolling over in the face of Russia's aggressive actions, interfering with our elections, cyber-attacks, poisoning its citizens, are over," he said. 

Biden also called on an end to the coup in Myanmar, adding he and Senate Minority Leader Mitch McConnell have discussed "shared concerns" and are "united in our resolve." 

"The Burmese military should relinquish power they have sieged, release the advocates and activists and officials they have detained, lift the restrictions on telecommunications, and refrain from violence," he said. 

Biden made several references to the Trump administration but did not name his predecessor by name. 

"America cannot afford to be absent any longer on the world stage," he said to conclude.

-ABC News' Conor Finnegan and Ben Gittleson

Biden addressed State Department employees with a public speech at the department Thursday afternoon, his first time doing so since taking office and ahead of a second speech on foreign policy later in the afternoon.

Speaking directly to employees at home and abroad, Biden said, "I promise I'm going to have your back," insisting also that, "America is back."

"The main message that I want to communicate to you all is that, whether you're part of the newest class of foreign service officers and you’ve worked for decades in the civil service or foreign service, or your locally employed staff, your vital and success, the strength of our nation depends in no small part on you," he said.

"America is back. America is back. Diplomacy is back. You are the center of all that I intend to do. You are the heart of it. We're going to rebuild our alliances. We're gonna re-engage the world and take on the enormous challenges we face dealing with the pandemic, dealing with global warming, and again standing up for democracy and human rights around the world," he said.

Secretary of State Antony Blinken delivered opening remarks before introducing Harris, who spoke ahead of Biden. Harris spoke about the administration's commitment to State Department staff and to setting an example on the global stage.

"Today, we are here in person to tell you that we are committed to upholding the highest standards of integrity and accountability, inclusivity and diplomacy on the global stage as a partner and a leader," Harris said.

House impeachment managers are requesting that former President Donald Trump testify either before or during his Senate impeachment trial slated to kick off in full next week.

"Two days ago, you filed an Answer in which you denied many factual allegations set forth in the article of impeachment. You have thus attempted to put critical facts at issue notwithstanding the clear and overwhelming evidence of your constitutional offense," the letter from Lead Manager Rep. Jamie Raskin, D-Md., began, referring to Trump's legal team's response to their legal brief laying out the change for "incitement of insurrection."

"In light of your disputing these factual allegations, I write to invite you to provide testimony under oath, either before or during the Senate impeachment trial, concerning your conduct on January 6, 2021," Raskin requested on behalf of the managers.

"If you decline this invitation, we reserve any and all rights, including the right to establish at trial that your refusal to testify supports a strong adverse inference regarding your actions (and inaction) on January 6, 2021," the letter finished, asking for a response from Trump by Friday at 5 p.m.

The crux of Trump's legal argument is that the trial is unconstitutional as he is out of office and a denial that he violated the oath of office, while skirting into election fraud territory, according to his formal answer to the article of impeachment submitted through his attorneys on Tuesday.

-ABC News' Trish Turner