Mark Zaid, the attorney representing the whistleblower who sounded the alarm on President Donald Trump's dealings with Ukraine and triggered an impeachment inquiry, tells ABC News that he is now representing a second whistleblower who has spoken with the inspector general.
Perry replaced Vice President Mike Pence, attending the inauguration of Ukraine President Zelensky, which sent a warning shot to the new president that he needed to play ball with the Trump administration in order to receive support.
The initial whistleblower's complaint alleged the President abused his official powers "to solicit interference" from Ukraine in the upcoming 2020 election, and that the White House took steps to cover it up.
There is no evidence that Biden or his son did anything wrong.
In an op-ed article in The Washington Post, Biden said Trump was "frantically pushing flat-out lies, debunked conspiracy theories and smears against me and my family, no doubt hoping to undermine my candidacy".
The messages offer the fullest picture to date of how top diplomats and Trump's personal lawyer Rudy Giuliani sought to advance Trump's goal of getting the Ukrainians to investigate both meddling in the 2016 election and Hunter Biden.
Walsh said the president deserves to be impeached.
Trump and his allies have tried to cast his appeals to foreign governments as part of a wide-ranging anti-corruption drive, though the president, when asked last week, could not name another such case that did not involve the Bidens.
Why is Mr Trump being investigated?
On Sunday, White House officials said information from a second whistleblower would make no difference. Volker told lawmakers that he was unaware that Biden's name came up in the July 25 call between Trump and the Ukrainian leader.
Biden bested Trump by nine points (48-39 percent) and had the only lead outside the poll's margin of error.
Rep. Jim Himes of CT, appearing on CBS' "Face the Nation", predicted that more staff members in sensitive positions would either initiate whistleblower complaints or provide damaging information to the news media.
Aside from Trump's attempt to pressure Zelenskiy, the July call has raised questions about whether Trump held back near $400 million in critical American military aid to Ukraine as leverage for an investigation of Burisma, a Ukrainian gas company.
The first whistleblower complaint prompted House of Representatives Speaker Nancy Pelosi to launch impeachment proceedings against Trump, saying that his actions threatened national security.
Demings was on "Fox News Sunday" and Jordan appeared on ABC's "This Week", while Klobuchar, Walsh and Sanford were on CNN's "State of the Union" and Graham spoke on Fox News Channel's "Sunday Morning Futures".
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