U.S. government debt prices were lower on Wednesday morning after a top U.S. Republican lawmaker moved to postpone a Senate vote on increased pandemic relief checks.At around 5:35 a.m. ET, the yield on the benchmark 10-year Treasury note was higher at 0.9514%, while the yield on the 30-year Treasury bond was also higher at 1.6932%. Yields move inversely to prices.Republican Senate Majority Leader Mitch McConnell on Tuesday blocked an attempt to unanimously pass a bill to increase direct payments in the year-end coronavirus relief package to $2,000.McConnell faces pressure to act after the House — with nearly all Democrats and a few dozen Republicans on board — voted Monday to increase the cash deposits to $2,000 from $600.Senate Republicans wary of spending more on pandemic aid are looking for a way to both meet the demands of a president who called the year-end coronavirus relief and funding bill a disgrace and hold on to their majority during races overshadowed by the crisis.On the data front, advance economic indicators for November are scheduled to be released at around 8:30 a.m. ET. Chicago Purchasing Managers’ Index (PMI) data for December and pending home sales for November will both be released slightly later in the session.The U.S. Treasury will auction $25 billion in 105-day bills and $30 billion in 154-day bills on Wednesday.— CNBC’s Jacob Pramuk contributed to this report.