Minnesota senator is urging opposition to Obama's pick for Treasury.
Blog Briefing Room
The New York mayor was speaking a day after the funeral for a murdered NYPD officer.
Giuliani says Obama's relationship with Sharpton turns police against him.
William Bratton said discussion was needed among both sides.
Hillary Clinton remains the odds-on favorite to win the Democratic presidential nomination.
Sen. Lindsey Graham and Sen. Bob Mendenez were also left off the air.
Bush leads New Jersey Gov. Chris Christie by 10 points in a CNN/ORC poll.
About 10,800 U.S. troops will remain in the country.
Bush will remain at Houston's Methodist Hospital through the weekend.
He will also visit Brazil next week for a presidential inauguration.