DAY IN A NUTSHELL
Hillary Clinton campaigns in Texas, while Barack Obama focuses on Wisconsin, where he makes a speech outlining his economic policies. John McCain receives another endorsement from the Republican establishment, this time from the party's leadership team in the US House of Representatives.
"Obama has systematically won states that play to his particular strengths since the Iowa caucus. So has Clinton. Her problem has been that she has not had any good states in the last week."
Jay Costa, RealClearPolitics.com
"I have not observed every speech he has given obviously, but they are singularly lacking in specifics."
John McCain on Barack Obama
"We are not standing on the brink of recession due to forces beyond our control. The fallout from the housing crisis that's cost jobs and wiped out savings was not an inevitable part of the business cycle. It was a failure of leadership and imagination in Washington."
"I am in the solutions business, my opponent is in the promises business... We need real results, not more rhetoric."
A new Strategic Vision poll of Wisconsin voters suggests that Barack Obama has the edge in the state - the next to vote on 19 February.
It gives him a four-point lead, with 45% to Hillary Clinton's 41%.
For the Republicans, the poll indicates that John McCain should have no trouble winning the state. It gives him 45%, to Mike Huckabee's 27%.
Two polls also give Mr Obama a lead among Democratic voters nationwide.
Gallup has him on 45% to Mrs Clinton's 44%, while Rasmussen gives him 46% to Mrs Clinton's 41%.
John McCain has accused Barack Obama of lacking substance - as has Mr Obama's Democratic rival Hillary Clinton.