A pedestrian outside the New York Stock Exchange in New York, July 29, 2020.Wang Ying | Xinhua News Agency | Getty ImagesU.S. stock futures fell slightly on Sunday evening as investors prepared for a busy week of corporate earnings and monitored stimulus negotiations in Washington.Futures for the Dow Jones Industrial Average fell about 60 points, or 0.2%, while those for the S&P 500 and the Nasdaq 100 also dipped 0.2%.The move in futures follows a strong week for the stock market. The Dow jumped 3.3% to post its biggest one-week gain since August, while the S&P 500 and Nasdaq Composite gained 3.8% and 4.6%, respectively, for their best weeks since July.”Markets last week appeared to price perceived election clarity, and with it, a growing likelihood of additional fiscal stimulus – at least in the pipeline. This was reflected from Small Cap outperformance to rising Treasury yields,” Julian Emanuel, BTIG’s chief equity and derivatives strategist, said in a note to clients Sunday.Chances for another round of stimulus before the election appeared to dim over the weekend, however, as both House Speaker Nancy Pelosi, D-Calif., and Senate Republicans pushed back on a $1.8 trillion offer from the White House.In a letter to colleagues, Pelosi highlighted what she said were insufficient offers on healthcare issues.”The news is filled with the numbers in terms of dollars. The heart of the matter is: can we allow the virus to rage on and ignore science as the Administration proposes, or will they accept the scientific strategic plan in the Heroes Act to crush the virus,” Pelosi said, referring to a bill that Democrats already passed in the House.Meanwhile, Treasury Secretary Steven Mnuchin and White House Chief of Staff Mark Meadows called for a separate vote on the Paycheck Protection Program in their own letter to Congress on Sunday.The apparent impasses follows a whirlwind week in Washington that saw President Donald Trump at one point call off negotiations, saying that Congressional Republicans should focus on confirming Amy Coney Barrett to the vacant Supreme Court seat. Trump then reversed his position and said to “go big” in negotiations.Monday’s session could also see investors and traders adjusting their positions before the third quarter earnings season kicks into high gear later in the week. Several major banks and airlines are slated to report their results, including JPMorgan Chase and Delta Air Lines on Tuesday.Subscribe to CNBC PRO for exclusive insights and analysis, and live business day programming from around the world.