WASHINGTON -- He would know.

As a longtime realtor in Cobb County, Sen. Johnny Isakson has seen housing downturns before. "We had recessions in 1968, 1974, 1982, and 1991, by every measurement, this is going to be a deeper and bigger recession in residential housing. It's a significant event."

Isakson is pitching an idea to his colleagues in Congress: a $15,000 tax credit to anyone who agrees to buy a home. Congressional budget analysts project the program would cost $14 billion over the next few years. But Isakson said the credits are well worth the hefty price tag. "If we can convince buyers to come back to the marketplace and buy these houses, then the houses aren't vacant. It's replaced by an owner-occupant, who is there making payments on a loan and helping all of the other houses around."

Senate Republican leaders have signed on to the tax credit idea. But they have to corral support from Democrats. Senate Democratic leader Harry Reid is instead pushing a foreclosure relief proposal called The Foreclosure Prevention Act of 2008, which would offer $4 billion to cities to rehab or knock down foreclosed properties. Reid's Democratic colleague Sen. Bob Casey said, "It's important that we have as much money as possible in the hands of local communities, to get it into communities, where they know how to spend those dollars and help families through this crisis."

Figures compiled for wsbtv.com by mortgage analysts with RealtyTrac show a surge in Atlanta-area foreclosures. In 2006, RealtyTrac reported 33,018 foreclosure filings in the Atlanta region. In 2007, 50,271 people were foreclosed upon.

The Senate is expected to debate both competing foreclosure proposals. Presidential candidates have also publicly announced proposals to ease the housing crisis. Sen. Hillary Clinton has proposed a temporary freeze on all home foreclosures.