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In page 1988 United States presidential election:

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While Bush had long been seen as Reagan's natural successor, there was still a degree of opposition within the party to his candidacy. Historical precedent was not seen to favor Bush's chances, as no incumbent vice president had been elected as president since Martin Van Buren in 1836. Dole attracted support among those who were concerned that Bush, whose electoral experience outside of his campaigns with Reagan was limited to running unsuccessfully for the Senate and twice successfully for the House of Representatives in the 1960s, had not done enough to establish himself as a candidate in his own right. Others who wished to further continue the shift towards social conservatism that had begun during Reagan's presidency supported Robertson.[citation needed]