21.   As the campaign begins to take root in the American consciousness, it does so with serious contests being waged in both parties.

22.   As the presidential campaign begins to heat up, many candidates are putting education at the top of their agendas, and Clinton is staking out the same turf.

23.   As polls show Yeltsin gaining against his Communist opponent, the Zyuganov campaign has begun loudly proclaiming that the Yeltsin campaign is planning to rig the election results.

24.   At the same time, a billboard campaign began with a shot of the wizard-students arriving by boat at a moonlit Hogwarts.

25.   At the same time, the Bush campaign began laying the groundwork to try to overturn the election result in the state legislature or the US Congress.

26.   Before the air campaign began, the United States acknowledged that limited numbers of special forces troops had entered Afghanistan.

27.   - The Derby campaign will begin with no clear favorite.

28.   A destabilization campaign had begun as soon as he was elected, he said, and police failed to pass on warnings that a coup was in the offing.

29.   A campaign began over the Internet to save the station.

30.   A campaign began Wednesday with advertisements in three national newspapers.