Business Week examines the possibility in its latest issue. Among the conclusions:

If the Democrats reach?or even get close to?60 votes, legislation that business has fended off in recent years with help from Republican allies will be tougher to hold at bay. That’s particularly true if Obama is elected. “The Democrats will be very constrained on spending, so they will have to get more of their policies across with regulation and mandates,” says Daniel Clifton, the Washington policy analyst for Strategas Research Partners, an institutional investment firm. “A lot of issues important to business?and to investors?face a growing risk.”

Be sure to check out this forum and John Hood?s Daily Journal for regular updates on the election picture.