WASHINGTON – With congressional opposition softening, U.N. Ambassador Susan Rice could find her name in contention as early as this week to succeed Hillary Rodham Clinton as secretary of state. It’s a step that may signal greater U.S. willingness to intervene in world crises during President Obama’s second term.

As Obama nears a decision on who should be the country’s next top diplomat, Rice has emerged as the clear front-runner on a short list of candidates that many believe has been narrowed to just her and Sen. John Kerry, despite lingering questions over her comments about the deadly Sept. 11 attack on a U.S. Consulate in Libya.

According to congressional aides and administration officials, Rice will be making the rounds on Capitol Hill this week for closed door meetings with key lawmakers whose support she will need to be confirmed.

Those appearances follow her first in-depth explanation of her Benghazi remarks that Republicans seized on as evidence of the administration’s mishandling of the attack that took the lives of the U.S. ambassador to Libya and three other Americans.

Acting CIA Director Michael Morell will join Rice in her meetings with lawmakers.

A senior Senate aide said the administration was trying to measure the strength of the Republican opposition to a Rice nomination, sounding out the more moderate members of the Foreign Relations Committee such as Sen. Bob Corker, R-Tenn., who is in line to become the panel’s top Republican next year, and Sen. Johnny Isakson, R-Ga.

Rice is scheduled to meet today with Sen. John McCain, R-Ariz., her most vocal critic on Capitol Hill. She will also meet with Sen. Kelly Ayotte, R-N.H. McCain and Ayotte are members of the Armed Services Committee.

During an interview Monday, McCain said he would ask Rice “the same questions I’ve been talking about on every talk show in America.” Asked whether he thinks she’s still unfit for secretary of state and what he was hoping for, McCain interrupted and said, “I’m not hoping for anything. She asked to see me, and I agreed to see her.”

McCain, who said this month that would he do everything in his power to scuttle a Rice nomination, said Sunday that he was willing to hear her out before making a decision. McCain ally Lindsey Graham, R-S.C., has also eased his opposition and said he is usually deferential to presidential Cabinet picks.