He conducted a negative campaign against his opponent.

他对他的对手进行了负面打击。

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Senator Obama denied that charge Wednesday in Norfolk, Virginia, and accused the McCain campaign of waging a negative campaign against him that USES lies and underhanded tactics.

奥巴马参议员星期三在维吉尼亚州诺福克竞选时否认对他的指责，并谴责麦凯恩竞选团队开展负面的竞选，使用谎言和卑鄙手段来诋毁他。

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Such hijacked media are the opposite of earned media: an asset or campaign becomes hostage to consumers, other stakeholders, or activists who make negative allegations about a brand or product.

这种劫持式媒体恰恰与免费媒体报道相反：某项资产或活动沦为了对某个品牌或产品发表负面言论的消费者、其他利益相关者或激进分子的“人质”。

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Representative CONRAD BURNS (Republican, Montana): Baseless allegations drummed up in a negative campaign that started almost a year and a half ago.

NPR: A Year of Ethics Lapses in Congress

"Without a positive agenda or vision for tomorrow, each of the Democrats has waged a negative campaign of vicious and unprecedented personal attacks on the president, " Mehlman said.

CNN: Bush campaign manager criticizes Kerry's votes

First, a negative campaign may well fail.

ECONOMIST: President Obama