At the by-election the following year, after Astor succeeded to a peerage, he contested the seat again but was again defeated. In his final try for Parliament, in 1955, he narrowly lost the new seat of Eastleigh to the Conservatives.
After Astor was elevated to a peerage, he attempted to win a parliamentary seat again but failed. In 1955, he narrowly lost the newly created seat of Eastleigh to the Conservatives.