'Purple power' pulls new laws through House

But the 2006 electoral landscape is clearly coloring decisions on which votes come to be defined as defining for Democrats, analysts say. And it's giving the GOP House leadership more scope for moving its own agenda, with or without cooperation from Democratic leadership.

"If they're a Democrat from a red district, they have to be looking over their shoulders all the time, and [these votes] are a good way to demonstrate to the Republican-leaning independents in their districts that they have indeed sided with the GOP on a certain number of leading issues," says Larry Sabato, a political scientist at the University of Virginia.

"Why would the Democratic leadership lean on their vulnerable members?" he adds. "They are going to reserve the pressure for a few matters that really matter - and Social Security is the most obvious."

In addition to the electoral calculus, business groups have worked with Republican leaders to build support for issues such as tax cuts, bankruptcy reform, and class-action reform from the grass roots, especially targeting vulnerable Democrats.

More than half of the Democratic votes for repeal of the estate tax, dubbed by Republicans the "death tax," came from Democrats in districts that Bush carried in 2004.

Similarly, nearly half the votes for bankruptcy overhaul and class-action reform came from this same 20 percent of the Democratic caucus.

"In the House, everybody needs a record every two years," says Bruce Josten, executive vice president for government affairs at the US Chamber of Commerce, which spent tens of millions of dollars lobbying for a law to shift class-action lawsuits from state to federal courts. "If the only thing your party stands for is obstruction, there's not much to run on. [Former Senate Democratic leader Tom] Daschle learned that last year," Mr. Josten says.

Last week's vote to lift federal restrictions on stem-cell research marked a critical mass of Republicans also willing to buck their leadership - and to buck President Bush, who he'll veto the bill. The 50 Republicans who voted against this bill included more than half of those in districts won by Kerry in 2004.

"When the klieg lights are turned off, and no one is watching, it's amazing how much bipartisanship you can find on Capitol Hill," says Michael Frank, a congressional analyst at the Heritage Foundation.

Democrats who have supported GOP positions say it's a mistake to interpret their votes as a broad endorsement of the Republican agenda.

"Most of these Democratic votes were to protect themselves from attacks for being weak on crime or taxes - not out of affection for Republican or their agenda," says Rep. James Moran (D) of Virginia, who is working with Congressman Dreier to build bipartisan support for CAFTA, the Central America Free Trade Agreement.

Democratic support will be critical if the president is to win this vote, because many Republicans from manufacturing states hit by existing free-trade agreements plan to oppose it. "A lot of Democrats feel that the CAFTA votes is important for Central America, but don't want to go on record until the last minute because of fear that opposition from the Democratic leadership and its allies will make political life miserable for the next few months," he says.

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