FILE - In this April 29, 2017, file photo, the three candidates, Republican Greg Gianforte, from left, Democrat Rob Quist and Libertarian Mark Wicks, vying to fill Montana's only congressional seat take part in a televised debate ahead of the May 25 special election in Great Falls, Mont. They tackled a wide range of topics, including guns, abortion, health care and money. The personal finances of the candidates, particularly that of Gianforte and Quist, have become a central focus of the campaign. (AP Photo/Bobby Caina Calvan, File)