Hello friends .
Just a support about the meaning of "aisle" cited in the following sentence: "members of both sides of the aisle".The background is the eulogy of the US President for the departure of the Senator Ted Kennedy.
The aisle, in the expression "both sides of the aisle", refers to the physical walkways in the U.S. Congress: The House of Representatives and The Senate. Members of the two major political parties sit on one side of the aisle or the other. "Members of both sides of the aisle" therefore means both Democrats and Republicans.
To add a little bit of perhaps humorous information, see the U.S. Senate seating chart.
If the Democrats get a larger majority, they might have to sit in each other's laps while the minority Republicans, currently with a distinct minority, do enjoy ample elbow room to go along with reduced influence.