The bill approved early Friday morning on a 54-37 vote would allow lobbyists to start making personal donations the day candidates can circulate petitions for office, which is April 15. Under current law they can't make any donations until June 1.
State law would continue to bar lobbyists from giving campaign donations to members of the Legislature while it is still in session.
The Senate narrowly passed the bill 17-16 earlier this month. It now heads to Gov. Scott Walker for his consideration.