As life-long Democrat, here's my list of Biden's mistakes:
1. Merrick Garland as AG. Biggest gutless coward ever to hold the position. You know how they say a Grand Jury will indict a ham sandwich? Garland would be the lone holdout.
2. The Afghan Withdrawal. Made our exit from Vietnam look like the Marshall Plan. Never acknowledged his poor judgement killed good people in that country.
3. The Border and blanket Asylum hold-status. I'm all for immigration, but it was out of control. And Biden, Harris, and his administration lied about the ongoing situation at the border non-stop. Deaf to complaints from the African-American and Latino communities about the negative impacts, i.e. job loss, and rising crime directly effecting them. This issue cost the election. And yes, Biden's DHS deported immigrants in larger numbers than Trump has so far, cameras don't lie. They'd downplay the subject while long lines of people crossed into Texas, and New Mexico on live TV.
4. The swing back to Identity Politics after the 2020 election. It's the economy, stupid. If Americans have jobs that pay the bills, put a roof over their heads, eat three square meals a day, and have something left over for savings then NOBODY GIVES A CRAP ABOUT TRANS PEOPLE,OR RACE, OR IF THEIR BOSS IS A WOMAN.
5. The whole cognitive decline thing. If Biden really had problems, which I don't think he did, there should have been an intervention prior to 2024. This would have allowed him to announce he wouldn't run, and give voters a decent field of candidates. And if he didn't have cognitive issues then he should have stayed in the race to let the voters decide. Trump has early stage dementia, but the press doesn't call him out on his daily mental lapses. Not just the lies, but his constant losing his train of thought. When they brought him in to swear in Tulsi Gabbard as ODNI, he sat down, gave a rambling speech, and got up to leave. Someone had to remind him to swear her in. But every gaff Biden made was front and center on Fox News, and in 2024 the major news outlets joined in.
6. Restrictions on US weapons systems we sent to Ukraine. Just dumb, and it killed good people.