The phrase "assert along" is not correct and does not appear to be a standard expression in written English.
It is unclear what context you intend to use it in, as it does not convey a clear meaning.
Example: "I need you to assert along the lines of our previous discussion."
Alternatives: "assert in accordance" or "affirm alongside".
Jeff Greenfield, in his new counterfactual book "If Kennedy Lived" (Putnam), asserts, along with many other larksome predictions (the Beatles would have gone to the White House; Ronald Reagan would have got the Republican nomination in 1968), that J.F.K. would never have escalated the war in Vietnam.
The metafictionalist says that something is asserted along the lines of: according to the number fiction, the number of apples is two.
When it is deployed — probably sometime after 2015 — the J-15 will signal the dawn of a new ability by China to assert authority along its coastline.
Before the Gekkos came along, they assert, American business was sluggish, unproductive, and uncompetitive.
Even the United States Chamber of Commerce — not always a worker's best friend — asserts that, along with the nation's entrepreneurs and companies, America's workers "are the best in the world".
So a week after the police crime figures were revealed as fictitious, the home secretary comes along to assert the priority of fighting the alleged scourge of slavery.
While she may have difficulty explaining financial proposals or foreign policy, or firing her sister's ex-husband without causing a scandal, she is clearly proud to assert femininity and sexuality along with power, possibly redefining what in America a female candidate can now be.
The U.S. Border Patrol continues to assert that their increased presence along the border actually saves lives.
precedent and assert what administrators have contended all along: that T.A.'s are not employees after all but professors-in-training with no need for a union.
Mostly we haven't, although wisdom does assert itself in bits and pieces along the way.
