WASHINGTON - Lawmakers have been building temporary dams to hold back the alternative minimum tax. Now, a bipartisan group of senators wants to eliminate the levy, originally aimed at wealthy tax dodgers, before it rushes into the middle class. Four senators — two Republicans and two Democrats, including the leaders of the Senate Finance Committee — hope to force serious discussion about altering or abolishing the levy by introducing a $611 billion bill to repeal it. "We're saying, in our bill, is that this ought to be at the top of the list in terms of tax reform," said Sen....