The government introduced a three line whip which called on its MPs to vote against the bill, even though it was introduced by a member of their own party.

If he holds out on the three line whip, my respect for him will have grown.

The government imposed a three line whip in the EU vote.

Labour MPs were to be pressured to vote for this measure by use of a three line whip.

A Three line whip would usually be excepted from this agreement.

The ruling African National Congress called a three line whip, requiring its MPs to vote for the bill.

At the vote that evening on whether to give the bill a second reading, 91 Conservative MPs voted against the three line whip, while 19 more abstained.

Moderate in politics, Wells supported British membership of the European Economic Community in 1971 against a three line whip.

Labour MPs were placed under a three line whip in order to force the motion through the Commons.

Loyalists are astonished that the prime minister is insisting that all his MPs must observe a three line whip.....