The lead-up to Election Day has often come with a time-honored tradition: the debate.

However, with the race for control of the Senate as close as ever this cycle, debates in down-ballot races have become rare or absent, even in some of this year’s most competitive contests.

According to an analysis by the Washington Examiner, only 45% of Senate races across the country will feature a general election debate ahead of November. While it is still early, and there are several contests where discussions are ongoing between candidates, control of the upper chamber could be decided in races where voters had little or no opportunity to see the candidates face off.

Control of the Senate is as close as ever, with only a handful of races likely to determine the majority this November. With eight weeks until the election, Democratic incumbent Sen. Sherrod Brown (D-OH) and his Republican challenger, Bernie Moreno, have not yet agreed to a debate, in one of the most closely watched races in the country.

However, sources indicate there are discussions ongoing. In other tight races, like Montana, only one debate has taken place between Sen. Jon Tester (D-MT) and GOP candidate, Tim Sheehy.