President Bush plans to reactivate his reelection campaign's network of donors and activists to build pressure on lawmakers to allow workers to invest part of their Social Security taxes in the stock market, according to Republican strategists. White House allies are launching a market-research project to figure out how to sell the plan in the most comprehensible and appealing way, and Republican marketing and public-relations gurus are building teams of consultants to promote it, the strategists said. The campaign will use Bush's campaign-honed techniques of mass repetition, never deviating from the script and using the politics of fear to build...