Mark Knoller

@markknoller

CBS News White House Correspondent, Radio

Photos and Videos by @markknoller

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At WH ceremony, Pres. Obama clasps the Medal of Honor around the neck of Sergeant First Class Leroy Petry.

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WH releases photo of Pres Obama watching TV coverage of final shuttle launch today. (WH photo by Pete Souza)

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All that's left of WH tree damaged by strom last weekend. Perhaps the president should give a stump speech.

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Pres Obama steps up to lectern on steps of Rose Garden to say much more needs to be done to expand job creation.

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Pres. Obama emerges from Oval Office to make Rose Garden statement on today's unemployment report.

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Awaiting Obama statement in Rose Garden. Hot, hazy and humid.

On moment's notice, Pres Obama says deficit talks constructive and summons Congressional Leaders back on Sunday.

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Pres Obama begins deficit talks with Congressional Leaders: (L-R): Hoyer, Cantor, Pelosi, Boehner, Obama, Reid

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Couldn't save damaged tree on WH grounds. Trimmed today for removal.

Pres Obama tweets 1st question to himself as Twitter exec Jack Dorsey looks on. (Photo by Susan Harmon/CBS)

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Pres. Obama begins Twitter Town Hall by tweeting question to himself.

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For use on your lectern at home. (Microphones & TelePrompTer not included.)

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Pres. Obama invites Congressional Leaders to WH Thursday for deficit reduction/debt limit talks.

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Marine One lifts off South Lawn transporting Pres Obama to join family at Camp David for July 4 weekend.

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Rare sight. Smaller VH-60N Blackhawk version of Marine One today to pick up Pres Obama for flight to Camp David.

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Storm brewing in Rose Garden as Pres Obama receives team jersey from WNBA champs Seattle Storm.

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Pres. Obama responds to question from one of ten reporters called on at news conference. (Not me.)

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Pres. Obama's opening statement ready to roll on one of two teleprompters in the East Room today.

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Mr President - can you tell us what the Big Dig on the north grounds is REALLY all about. & I have a followup.

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Here's 's power strip. The essence of empowerment