O'Neill defeated the party 's preferred slate of delegates to the 1956 Republican National Convention , which re-nominated Dwight Eisenhower . Prior to Eisenhower 's nomination , she pressed the RNC on whether or not Eisenhower had adequately recovered from his heart attack , embarrassing the party . In 1958 , 29 year old DuPage County Assistant State 's Attorney , Harris Fawell challenged O'Neill in the 41st district Republican primary for the Illinois Senate . She defeated Fawell and was reelected to her sixth term
1956 Republican National Convention
1956 Republican National Convention
Lottie Holman O'Neill