WASHINGTON -- As Americans race to meet tomorrow's tax deadline, President Barack Obama accused Republicans yesterday of trying to boost the richest Americans at the expense of poorer taxpayers.

Obama plans events all this week aimed at rallying support for his own tax proposals while detracting from Republicans' plan to repeal an inheritance tax on large estates.

The president kicked off the effort yesterday with a series of interviews with local television stations in Pennsylvania, Wisconsin, South Dakota, Ohio and Maine. Obama told WGAL in Lancaster, Pennsylvania, that his own proposed middle-class tax cuts would reach 44 million Americans, while the GOP is proposing a $270 billion tax cut that would help only 5,000 families across the nation.

"A budget that I sign has to help the folks who need help," Obama told WBNS in Columbus, Ohio. "It can't be that we're going to provide additional tax breaks to folks who make more than $5 million a year at the expense of folks who are really struggling."

The estate tax repeal is among a series of tax-related measures that the GOP-controlled House plans to vote on this week. Obama said the Republican proposals would add hundreds of billions to the deficit, but Republicans said it was Obama, not the GOP, who was failing to keep deficits under control.

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"Under President Obama's budget plan -- that never, ever balances -- many middle-class families will actually pay more in taxes," said Cory Fritz, a spokesman for House Speaker John Boehner (R-Ohio). "Republicans are the only ones offering a balanced budget that paves the way to new jobs and a fairer, simpler tax code for all Americans."

Obama planned to continue the push today with an event promoting equal pay. Tomorrow he planned to travel to Charlotte, North Carolina, to meet with women about budget policies to support families. And on Thursday he was to hold a White House event on family-friendly workplace policies.