His name surfaced earlier this year when Trump's former personal lawyer, Michael Cohen, said Costello had dangled the possibility of a pardon from Trump.
Igama lakhe livelile ekuqaleni kwalo nyaka ngesikhathi owayekade engummeli ka-Trump, u-Michael Cohen, ethi u- Costello ubelokhu ekhuluma ngamathuba okuthola ushwele ku-Trump.