The Republicans want to ban political contributions from contractors at all levels of government, including those who go through competitive bidding.

We should ban contributions from lobbyists to those who lobby.

Tillman Act of 1907, banned corporate political contributions to national campaigns.

And while the federal government bans direct corporate contributions, the state allows them.

And he called for reforming the "pay-to-play" culture of government by banning political contributions from people who do business with the city.

Is it really in the best interest of this country to ban contributions to Republicans but not Democrats?

But it is harder to ban contributions by individuals, where there are constitutional questions of personal liberty.

House rules specifically ban contributions from registered lobbyists to representatives' legal defense funds.

The urgent need is to pass legislation to ban soft-money contributions to the parties.

Many countries ban anonymous donations or contributions from foreign sources.