Pro-life advocates in Maryland, Iowa and Indiana are pushing back with rallies and talk of more restrictive legislation as one of the nation's most prominent late-term abortion doctors works to expand his practice in all three states.

Don Dwyer Jr., a Republican member of Maryland's House of Delegates from Anne Arundel County, said this week that he was talking with other pro-life lawmakers about more restrictive legislation in the wake of Dr. LeRoy Carhart's decision to establish an office this week in the Germantown Reproductive Health Services clinic in suburban Montgomery County.

Mr. Dwyer told Southern Maryland Online that the purpose of the talks was to produce a bill "to regulate abortion clinics as they do in many other states." The next session of the Maryland General Assembly begins Jan. 11...