AUSTIN (Nexstar) -- Sen. Ted Cruz and U.S. Rep. Colin Allred will debate for the first and only time Tuesday at 7 p.m. in Dallas, each vying to win a crucial seat in the U.S. Senate as polls show a razor-tight race. ‘We have a battle on our hands’: Cruz kicks off Texas tour, Allred rallies DNC in fight for Senate WFAA in Dallas will host the debate with WFAA political reporter Jason Whitely and Dallas Morning News' Gromer Jeffers. You can watch their stream in the video player below. The debate comes less than a week before in-person early voting begins and could prove essential as some polls show the two candidates within just one point of each other. "Both Senator Cruz and Congressman Allred need to paint each other as outside the mainstream. You have seen that throughout this campaign. Both guys have tried to portray themselves as bipartisan problem solvers," Editor of the Quorum Report Scott Braddock said. "It's going to be the economy, the border and, abortion. The first two, I think that both of them will agree that they are top issues. And I think that Allred is really going to push on the abortion issue." Cruz, Allred tout crossover appeal to win US Senate matchup The race has already broken state spending records, with the campaign spending more than $100 million so far -- breaking the previous spending record when Beto O'Rourke nearly defeated Cruz in 2018. Allred's run is attracting national attention and investment as Democrats see a real chance at flipping the long-red Texas seat.