> Which is kind of odd. 100% of the House is up for re-election; only 1/3 of the Senate is. I would expect the House to be fracturing more than the Senate. The

> Which is kind of odd. 100% of the House is up for re-election; only 1/3 of the Senate is. I would expect the House to be fracturing more than the Senate. The senators all have to battle state wide campaigns that are much more competitive than most safe house seats, which tends to have a moderating influence. Their campaigns are also a lot more expensive so they have to answer to a greater number and diversity of donors, while being less afraid of a more extreme primary challenger.