In a race fueled by high-stakes events, such as President Trump's felony conviction and former Vice President Joe Biden's polarizing debate performance, both campaign teams experienced significant surges in fundraising. With money pouring in from a range of sources, the battle for financial supremacy on the political battlefield intensified.

The Republican National Committee (R.N.C.) witnessed a remarkable financial turnaround, thanks to President Trump's conviction. Starting with a meager $9 million in cash reserves at the end of January, the R.N.C. closed June with an impressive $102 million in its coffers, almost doubling the $54 million it had by the end of May. This surge in funds was primarily attributed to a spike in small-dollar fundraising, as disclosed by campaign committees and data released by the Republican fundraising processing firm WinRed. From May 30 to May 31, Mr. Trump and allied Republican groups raised approximately $69 million, totaling $34.5 million raised on each of those days. These numbers shattered previous records for the best online fundraising day of the campaign.

Although not reaching Trump's fundraising levels, Mr. Biden also experienced significant financial gains after Trump's conviction. Mr. Biden, along with allied Democratic groups, raised a total of $19.2 million in the two days following the conviction, according to the Democratic fundraising platform ActBlue. Surprisingly, Mr. Biden's best fundraising days occurred after his lackluster debate performance at the end of June. Between June 27 and June 28, Biden and his committees amassed roughly $28 million.

While Democrats received strong contributions after President Trump's conviction, the same cannot be said for Republicans following Mr. Biden's debate performance. According to WinRed, the G.O.P. raised about $11.9 million from June 27 to June 28, only slightly higher than their typical daily fundraising numbers.

When examining the overall campaign finances, Mr. Biden and the Democrats out-raised President Trump and the Republicans in June, with $127 million compared to $112 million, according to figures reported by the campaigns. However, despite trailing in fundraising, Republicans still held a $45 million advantage in cash on hand compared to Democrats at that point.

Notably, figures reported by the campaigns could differ from those disclosed in filings with the Federal Election Commission as they may not include unitemized contributions.

As the race for the presidency enters a crucial phase, the financial landscapes for both parties have shifted significantly. With unprecedented sums pouring into campaign coffers, the influence of money in the political arena is undoubtedly shaping the race ahead.