Representative DENNIS HASTERT (Republican, Illinois): I answered all the questions they asked to the best of my ability.

NPR: Hastert Speaks to Ethics Panel on Foley Scandal

All that I was ever told to was to tell the truth to the best of my ability.

NPR: Before Congress, Clemens Insists He Is Innocent

''In the meantime, I will as usual be concentrating on fulfilling my obligations to the best of my ability in the best interest of the Ireland team.

BBC: SPORT | Rugby Union | Irish | New role for Kidney

According to the words prescribed by the US Constitution, Mr Obama swore he would "faithfully execute the office of president of the United States, and will to the best of my ability, preserve, protect and defend the Constitution of the United States".

BBC: Inauguration: Barack Obama is sworn in for second term

Secondly, I'm just going to say that I'm happy -- I know there will be many questions and I'm happy to try to the best of my ability and the knowledge that we have right now to answer those questions, understanding that this is an investigation right now being conducted by the Department of Defense and the Federal Bureau of Investigation.

WHITEHOUSE: Press Briefing

"I intend to work as hard as I can and to represent the people of New York to the best of my ability, to work hard to serve my constituents, to work with my colleagues wherever and whenever I can on behalf of our country -- so I am absolutely hoping to build relationships and create consensus with every senator, " she added.

CNN: Senator-elect Hillary Clinton heads to Capitol Hill