The Obama administration was accused Wednesday of providing cribbed answers to 23 questions in the form the Senate received for the hearing of its nominee to lead the Department of Homeland Security -- as the nominee also ran into criticism from one senator who said he won't vote for him unless he makes a major border security pledge. Sen. John McCain, R-Ariz., got into a heated exchange with nominee Jeh Johnson, pressing him to commit to boost border security to 90 percent effectiveness. Johnson did not make the pledge. McCain said he, then, could not support his nomination. That was...