The Dems delayed the impact of ObamaCare for 5 years (allowing Obama to win re-election); I don’t know why Trump’s tax cuts weren’t implemented sooner, so people could see the positive results. In high cost areas, propaganda convinced people that the loss of the “unlimited” property tax deduction would kill them - although many would still come out ahead due to the doubled standard deduction. The Republicans ceded the House in NJ, NY, and CA because of this.