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Photo: Siavosh Hosseini/NurPhoto via Getty Images

Rudy Giuliani has been subpoenaed by the House Intelligence Committee to produce documents by Oct. 15 related to his and President Trump's alleged efforts to push the government of Ukraine to investigate Joe Biden.

Why it matters: Over the past year, Giuliani has met with a variety of Ukrainian officials in an effort to investigate baseless allegations that Biden forced Ukraine to fire a prosecutor investigating his son, Hunter. In a July phone call that is now at the heart of House Democrats' impeachment inquiry, Trump asked Ukraine's president to work with Giuliani to investigate Biden — prompting allegations by a whistleblower that Trump was soliciting foreign interference in the 2020 election.

  • The chairmen of the House Intelligence, Foreign Affairs and Oversight committees wrote in a letter that in addition to admitting on national television that he asked Ukraine to investigate Biden, Giuliani stated that he is in possession of evidence that suggests other Trump administration officials are involved in the scheme.
  • Giuliani recently told the Washington Post that he has "about 40 texts" from State Department officials asking him to do what he did.
  • The chairmen also sent letters to 3 of Giuliani's business associates — Lev Parnas, Igor Fruman, Semyon “Sam” Kislin — seeking documents and scheduling depositions.

The big picture: The House Intelligence Committee is moving full steam ahead with its impeachment investigation, having also subpoenaed Secretary of State Mike Pompeo and scheduled a hearing with Intelligence Community Inspector General Michael Atkinson for Friday. The committee is also working to secure testimony from the anonymous whistleblower.

What to watch: Giuliani said on Sunday that he will cooperate with the committee's investigation if Trump asks him to, but attacked Rep. Adam Schiff (D-Calif.) as an "illegitimate chairman" who deserves to be removed.

Read the letter to Giuliani:

Go deeper

Air quality alerts issued as California fires threaten more sequoias

The Windy Fire blazes through the Long Meadow Grove of giant sequoia trees near the Trail of 100 Giants in Sequoia National Forest, near California Hot Springs, on Tuesday. Photo: David McNew/Getty Images

Two wildfires were threatening California's sequoia trees over overnight — hours after authorities issued fresh evacuation orders and warnings, along with air quality alerts.

The big picture: Air quality alerts were issued Wednesday for the Bay Area and the San Joaquin Valley as smoke from the Windy and KNP Complex fires resulted in hazy, "ash-filled" skies from Fresno to Tulare, the Los Angeles Times notes.

Asymptomatic Florida students exposed to COVID no longer have to quarantine

Florida Gov. Ron DeSantis during a September news conference in Viera, Fla. Photo: Paul Hennessy/SOPA Images/LightRocket via Getty Images

Florida Gov. Ron DeSantis (R) announced Wednesday an emergency order allowing parents to decide whether their children should quarantine or stay in school if they're exposed to COVID-19, provided they're asymptomatic.

Why it matters: People infected with COVID-19 can spread the coronavirus starting from two days before they display symptoms, according to the CDC. Quarantine helps prevent the virus' spread.

Federal judge: Florida ban on sanctuary cities racially motivated

Florida Gov. Ron DeSantis. Photo: Joe Raedle/Getty Images

A federal judge on Tuesday struck down parts of a Florida law aimed at banning local governments from establishing sanctuary city policies, arguing in part that the law is racially motivated and that it has the support of hate groups.

Why it matters: In a 110-page ruling issued Tuesday, U.S. District Judge Beth Bloom said the law — signed and championed by Gov. Ron DeSantis (R) — violates the Constitution's Equal Protection Clause because it was adopted with discriminatory motives.