tested and proved

The spending that liberals favor these days — much of it included in President Biden’s American Families Plan that Democrats are pushing through Congress — is for government interventions that have been tested and proved.

“Engineered protein technology has been tested and proved in the past—it just takes a little more time to produce than RNA,” explains Gregory Glenn, president of research and development at Novavax.

The contents of some of the packages were tested and proved positive for cocaine.

Jerome Salomon, head of France’s national health agency, said 61 people including the boy’s schoolmates were tested and proved negative for the virus.

Jerome Salomon, head of France’s national health agency, said that in the wake of the episode, 61 people, including many children who went to school with the boy, were tested and proved negative for the virus.