Track by Issue

Each issue gathers bills by their official subject tags (from the Congressional Research Service) and title keywords. A bill's side comes from clear wording in its title. For example, a War Powers resolution to remove U.S. forces from hostilities with Iran counts as against the war. Bills without a clear direction are listed as unclear and don't count. The administrator can set any bill's side by hand.

A member's position comes from their whole record on the issue:

• Sponsoring or cosponsoring any bill with a side counts toward that side, whether or not the bill has moved: a cosponsor has taken a public position.
• Votes on decided bills (passed at least one chamber or became law, or voted down in a recorded vote on the bill itself): a yea counts toward the bill's side, a nay toward the other. Only votes on the bill itself count (passage, adoption, cloture, veto override). Bills still moving are pending; bills with no action in 3 months that haven't passed are inactive; neither has votes to count.
• Recorded House votes on amendments about the issue, most of them to spending bills (for example, amendments to strike or bar funding for Israel, Ukraine or Taiwan). The amendment's wording decides its side; a yea counts toward it, a nay toward the other side.

Mostly one way (70% or more) puts a member on that side; anything else is in the middle. Members with no record on an issue aren't shown, and the page always says how many members have a record: when fewer than a quarter of a chamber do, it doesn't give percentages.