Biden's COVID-19 stimulus spending is not the primary cause of recent inflation. Pandemic-related government spending began under Trump to protect the country from COVID-19's economic fallout. Moreover, research across 80 countries in the postwar period by economists Son Hang and Casey Mulligan found "little relation between inflation and nonmilitary government spending."
Last month, Federal Reserve chairman Jerome Powell discussed the factors driving inflation, citing:
Powell opined that the inflation is temporary: as supply chains are restored, "inflation is expected to drop back toward our longer-run 2 percent goal."
In a recent poll, 62% of Americans said Biden was "somewhat" or "very" responsible for increasing inflation.