A third presidential candidate emerged to mount a serious challenge and throw the campaign wide open.

第3位总统候选人上场郑重发出挑战，令这次竞选充满悬念。

《柯林斯英汉双解大词典》

The presidential candidate made three mistakes, or gaffes, during his speech.

校长候选人在演讲中出了三次错，或失态。

youdao

As a junior reporter, I had drawn the junior presidential candidate, who happened to win.

我是晚辈记者，他是刚出道的候选人，我选了他，而他居然赢了大选。

youdao

The Democratic Party chose for its presidential candidate a hero of the Civil War -- General Winfield Scott Hancock of Pennsylvania.

VOA: special.2010.04.22

The steamer Lady Elgin was carrying passengers from Milwaukee, Wisconsin to Chicago to hear a speech by Democratic presidential candidate Stephen Douglas.

VOA: special.2009.11.11

The speech followed days of protests by hundreds of thousands of supporters of presidential candidate Mir Hossein Mousavi.

VOA: special.2009.06.20

John Wilkins finds some irony in press coverage critical of Republican presidential candidate Rick Santorum.

FORBES: Rick Santorum and the 13th Century

They chose their presidential candidate, Manuel Rosales, via back-room consensus instead of a primary.

ECONOMIST: Venezuela��s presidential campaign

W. Bush, in 1988, was the last Republican presidential candidate to take the state.

NPR: Palin Moved The Electoral Map, But For How Long?