Trump's 2020 attack strategy against Biden is straight from his 2016 playbook

President Donald Trump and his allies have zeroed-in on an attack against Joe Biden, going after the presumptive Democratic presidential nominee's mental fitness in a coordinated effort using smears and innuendo to paint him as ill-quipped for the presidency.

source https://www.cnn.com/2020/04/30/politics/2020-election-trump-campaign-biden-attacks/index.html