Agence France-Presse: President Barack Obama’s climate change agenda was thrown into turmoil Sunday after a key Republican abruptly pulled his support for a compromise energy and climate bill in a blow to Democrats. Senator Lindsey Graham, an influential Republican, abandoned what Democrats said was a painstakingly negotiated climate bill in outrage over a decision by Senate Majority Leader Harry Reid to move an immigration bill in the Senate ahead of it. White House officials appeared to be taken …