Citing new evidence that "confirms" Syrian President Bashar al-Assad's regime used chemical weapons to kill its own citizens, the White House on Sunday began making desperate efforts to gather congressional support for President Obama's plan to attack Syria.
Secretary of State John Kerry, who appeared on five talk shows on Sunday, said blood and hair samples collected from the Damascus site of the alleged Aug. 21 chemical weapons attack provide further evidence against the Syrian regime.
Tests found signatures of the lethal sarin gas in the samples collected separately from a United Nations investigation, Kerry said on CNN's "State of the Union" show. The alleged attack killed 1,429 people, including at least 426 children, according to the White House.
Obama, Vice President Joe Biden and Chief of Staff Denis McDonough spent Sunday making calls to senators and House members, urging them to support the planned military intervention in Syria, Fox News reported.