It would be political suicide unless they were able to lie convincingly about the numbers deployed.

Sometimes people can lie convincingly, but Matt didn't seem to have the energy to try.

The surest way to lie convincingly is to tell the truth unconvincingly.

Under the power of his brother's ability to defeat truthspell, he lies convincingly.

Casiodorus is unable to lie convincingly when she confronts him.

Or she lies so convincingly that I can't tell.

They can then lie about it convincingly the next time you meet, or (praises be!)

I would not be able to lie to Lady convincingly.

A man who could not lie convincingly got short shrift from women.

Commodore, it is true that I never learned to lie convincingly.