Today's Muhlenberg tracking poll
of the Pennsylvania Senate race shows a tie between Republican Pat Toomey and Democrat Joe Sestak, at 43%-43%.
The survey of likely voters
has a Â±5% margin of error
. In yesterday's tracking poll -- which overlaps today's numbers by three days of sampling, out of four days each -- the two were also tied at 43%-43%.
The TPM Poll Average
gives Toomey a lead of 46.2%-44.2%. As we noted this morning, Sestak trailed for months, but is quickly catching up
in the home stretch.