Not true. The Government never issued such a statement. Indeed, quite the opposite - it was well explained that even with the vaccine you could still catch and spread it.
You're wrong. When the vaccine came out under Trump it was get the vaccine so you can't catch it and spread it. I tried to find Fauci saying it but it's scrubbed from youtube. Later on they changed their tune with you can still catch it and spread it. Saying if you caught it would be a milder case.
July 2021 Biden said on a CNN town hall, "You're not going to going to get Covid if you have these vaccinations."
April 2021 The CDC said by Chief Rochelle Walensky , "Vaccinated people do not carry the virus , don't get sick. And that's not clinical trials, it's also in real world data. "