Buckley's most controversial assertions, all but calculated to outrage, were on the issues of poverty and welfare.

Of the books published under his authorship, The New Freedom contains controversial yet relevant assertions.

His most controversial assertion may be that the synthetic substance, once grafted into place, can cause the formation of new natural bone.

Though they may sound benign, those are some pretty broad and potentially controversial assertions," she said.

Each controversial assertion is treated as if it were being made for the first time.

In September 2007 he sparked a debate by his controversial assertion to shoot down jetliners in the case of a terrorist attack on Germany.

When she was appointed, Ms. Fiorina made a widely reported, controversial assertion that there was no glass ceiling.

No proof was offered of this sensational and scientifically controversial assertion.

It's a highly controversial assertion these days, but to Long, it's an article of faith.

This is, to say the least, a controversial assertion for which Diggins does not provide any evidence.