ANKENY, Iowa (AP) - Republican presidential candidate Michele Bachmann says she opposes GOP House Speaker John Boehner's plan to increase the federal borrowing authority.

Bachmann, a Minnesota congresswoman, is telling Iowans that she will vote against any measure in Congress to raise the debt ceiling. The three-term House member says blocking the increase will force Congress to cut spending.

Bachmann told people outside a diner in suburban Des Moines that it - quote - is "a day of reckoning and Washington refuses to deal with the day of reckoning."

House leaders say that conservative Republicans in the GOP-controlled House have the votes to block Boehner's plan.

Boehner has proposed raising the debt ceiling in two stages, including now and early next year, in exchange for spending cuts.

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