BREAKING: Senior U.S. official says U.S. has concluded that Russia knew in advance of Syria's chemical weapons attack last week.

— The Associated Press (@AP) April 10, 2017

Mattis: Syria would be "ill-advised ever again to use chemical weapons" https://t.co/9l92SFTYG6 pic.twitter.com/ik6Igg0dN2

— The Hill (@thehill) April 10, 2017

.@PressSec Sean Spicer on President Trump's Red Lines #Syria pic.twitter.com/nC1ScGh5m8

— CSPAN (@cspan) April 10, 2017

"The simplest explanation is that Spicer just doesn’t know what a barrel bomb is." https://t.co/5fPLeA5pyM

— Brian Stelter (@brianstelter) April 10, 2017

Opinion: "Trump’s Syria strikes do not amount to a coherent policy" https://t.co/SM2r7Juuj1

— The Washington Post (@washingtonpost) April 10, 2017

Syria war: G7 seeks united front on Assad and Russia https://t.co/9iNLR7rYrw

— BBC News (World) (@BBCWorld) April 10, 2017

Rex Tillerson issues warning to nations that "commit crimes against the innocents" during G7 summit https://t.co/aPv3F2EIii pic.twitter.com/E1qIWaRLtC

— New York Daily News (@NYDailyNews) April 10, 2017

Today's paper pic.twitter.com/pUiCMrcKTa

— John Cusack (@johncusack) April 10, 2017

NBC's Andrea Mitchell scolds Tillerson, Trump over treatment of press https://t.co/yKaw7GtTiU pic.twitter.com/Ko1wOQDjdO

— The Hill (@thehill) April 10, 2017

United States delegation to G7 delays joint climate statement https://t.co/FEcwMVHiF6 pic.twitter.com/lmfw844Z7w

— The Hill (@thehill) April 10, 2017

Neil Gorsuch takes oath in White House Rose Garden ceremony, filling Supreme Court vacancy https://t.co/flW7fzPYw9

— The Wall Street Journal (@WSJ) April 10, 2017

The quote alone should be enough to motivate every Democrat every day until the 2018 elections https://t.co/EXv5Br8pXf

— Dan Pfeiffer (@danpfeiffer) April 10, 2017

Wife of arrested Russian hacker: ‘The virus my husband allegedly created was related to Trump’s victory’ https://t.co/SkZ3ZV3ZXe pic.twitter.com/mZs29F3MPR

— Raw Story (@RawStory) April 10, 2017

Alabama governor to resign, ex-administration member says https://t.co/HnNjlHxyN0 pic.twitter.com/m7HuA1XwfQ

— POLITICO (@politico) April 10, 2017

Jail records: Alabama governor booked on 2 misdemeanor charges https://t.co/GlTlAn9l04 pic.twitter.com/UTEQ5UYxOu

— POLITICO (@politico) April 10, 2017

Last week, it was revealed the NRCC was panic-spending $100,000 in #KS04. You'll never believe what happened next pic.twitter.com/3Iyd24DezM

— Will Jordan (@williamjordann) April 9, 2017

San Bernardino school shooting:
2nd since Friday
12th this year
220th since 2013https://t.co/wOCZwUoFwZ

— Christopher Ingraham🦗 (@_cingraham) April 10, 2017

San Bernardino shooting: Two adults dead in "murder-suicide" and two pupils taken to hospital in 'critical' condition pic.twitter.com/n29XKDXqfE

— The Telegraph (@Telegraph) April 10, 2017

Tuesday's Metro: "He laid down his life for each one of us" pic.twitter.com/iSCTZLJFIc #BBCPapers #tomorrowspaperstoday (via @hendopolis)

— BBC News (UK) (@BBCNews) April 10, 2017

Saffiyah Khan, the woman who defied the EDL, speaks out – video https://t.co/HgvLiyf3Yt

— The Guardian (@guardian) April 10, 2017

Dalai Lama says his followers should decide fate of his office. "They will decide whether the tradition continues" https://t.co/tDtTT5fBH1 pic.twitter.com/S7v77GaUfd

— This Week (@ThisWeekABC) April 10, 2017

Everything in this 1991 RadioShack ad is in your smartphone 📱 pic.twitter.com/4fx1yRQVlV

— Vala Afshar (@ValaAfshar) April 10, 2017

Congratulations to all the 2017 #Pulitzer Prize winners! Full list with finalists + winning work available here: https://t.co/6vV5VdlFOz

— The Pulitzer Prizes (@PulitzerPrizes) April 10, 2017

Congrats to @fahrenthold for winning the 2017 Pulitzer Prize for national reporting. 🕵 🎉 https://t.co/4LLrLEON8Z pic.twitter.com/hSz9WlFWvn

— The Washington Post (@washingtonpost) April 10, 2017

David Fahrenthold, The Washington Post's Trump charity sleuth, just won the Pulitzer Prize. Here's our Q+A with him:https://t.co/HKGkK8MTCq

— Poynter (@Poynter) April 10, 2017

So 3 Pulitzers for “does major FAKE NEWS!”, 1 for “so false and angry,” 1 for “left-wing blog,” and 1 finalist for “failing pile of garbage”

— Joshua Benton (@jbenton) April 10, 2017

Here's the masthead of the Storm Lake Times, a 3,300-circ paper that just won the Pulitzer in Editorial Writing https://t.co/DRSoQHuICx pic.twitter.com/UNkdQMYoJ5

— Kevin Pang (@pang) April 10, 2017

Amazingly, @United is continuing to defend/rationalize the biggest public relations disaster in recent memory: https://t.co/OKV5nlBiAB

— Niall Stanage (@NiallStanage) April 10, 2017

United CEO response to United Express Flight 3411. pic.twitter.com/rF5gNIvVd0

— United Airlines (@united) April 10, 2017

We rewrote United Airline’s pre-flight safety speech so they don’t have to https://t.co/IkcUavY4k7 pic.twitter.com/tGkQsxz4AH

— Mashable (@mashable) April 10, 2017

United Airlines is pleased to announce new seating on all domestic flights- in addition to United First and Economy Plus we introduce…. pic.twitter.com/KQjPClU2d2

— McNeil (@Reflog_18) April 10, 2017

United Airlines Training Video Leaked To Press.#United #UnitedAirlines @United #ual pic.twitter.com/6iNNqd0eJa

— Alt Fly United (@altflyunited) April 10, 2017