The phrase "asserting during" is grammatically correct and can be used in written English.
It can be used when discussing the act of stating or affirming something that occurs within a specific timeframe or event.
Example: "The researcher was asserting during the conference that climate change is an urgent issue that requires immediate action."
Alternatives: "claiming while" or "stating at the time of".
But Mr. Morell reinforced the perception of an administration that cannot get its story straight by asserting during the meeting that the F.B.I. had modified Ms. Rice's talking points by removing a specific reference to Al Qaeda.
Even Ms. Giraldo, whose face he had been accused of slashing with a broken glass, stood up for him, asserting during the trial and again on Friday that he had injured her accidentally.
A federal judge has added fresh fuel to the incendiary controversy over Hillary Clinton's email, asserting during a hearing Thursday that she violated government policy by storing official messages on a private server when she worked as secretary of state.
"Aren't we tired of this stuff?" the man who spent years insisting President Obama was born in Kenya recently said, after bizarrely asserting during the first debate, "When you talk about healing, I think that I've developed very, very good relationships over the last little while with the African-American community.
It can be helpful to use asserts during development to verify required conditions.
He asserted during one recent interview, "The lockout ends when I tell my owners it ends".
Israeli officers had asserted during the siege that army snipers fired only at armed Palestinians spotted outside the compound buildings.
At least one Sunni member of the committee asserted during deliberations that Shiites did not have a majority in Iraq.
Mr. Moussa had asserted during Friday Prayer that Hamas was lax in its observance of Islamic law.
Second, Mr. Kaczynski objected to his lawyers' plan to assert during the first phase that he is insane.
The card is switched to SPI mode if the Chip Select (CS) signal is asserted during reception of the reset command.
