Several large law firms saw a downturn in lobbying revenue in the third quarter, as political battles on Capitol Hill over government funding and the House Speaker race slow down legislative work.

Brownstein Hyatt Farber Schreck, K&L Gates, Squire Patton Boggs and Hogan Lovells all saw lobbying revenue declines in the third quarter compared with the second quarter, according to Lobbying Disclosure Act filings on Friday.