Answer: logrolling

AnswerCrossword Clue
LOGROLLINGSeveral fallen trees immediately joined the campaign by engaging in...
LOGROLLINGLumberjack water sport
LOGROLLINGLegislative exchange of favors
LOGROLLINGPolitical back scratching
LOGROLLINGBack-scratchers' activity
logrollingThe practice of exchanging favors, esp. in politics by reciprocal voting for each other's proposed legislation
logrollingA sport in which two contestants stand on a floating log and try to knock each other off by spinning it with their feet