Original sentence: Walker has not announced that he is running for president, but in late January he set up a 527 organization called "Our American Revival" to "help spread his message and underwrite his activities" which the Washington Post described as helpful for building the political and fundraising networks for a run for the presidency
Edited sentence: Walker has not announced that he is running for president, but in late January he set up a 527 organization called "Our American Revival" to "help spread his message and underwrite his activities" for building the political and fundraising networks for a run for the presidency