Former Sen. Tom CoburnThomas (Tom) Allen CoburnThe Hill's Morning Report — Presented by PhRMA — Worries grow about political violence as midterms approach President Trump’s war on federal waste American patients face too many hurdles in regard to health-care access MORE (R-Okla.) says he hasn’t seen enough “self-discipline” and “control over his ego” from presumptive GOP presidential nominee Donald TrumpDonald John TrumpGOP senators balk at lengthy impeachment trial Warren goes local in race to build 2020 movement 2020 Democrats make play for veterans' votes MORE.

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During a Thursday interview on MSNBC’s “Morning Joe,” the former senator was asked whether he had any hope that Trump would become a good leader for the Republican Party.

“Well sure, I have hope. I think everybody can change," Coburn responded.

"The question is, does he have the self-discipline and some control over his ego to be able to say ‘I’m wrong’ every now and then? I haven’t seen that, but that’s not a whole lot different than a whole lot of Washington.”

Coburn, who retired in 2015 after 10 years in the Senate, ruled out an independent presidential bid last month.