[P]rivately, even a few Democrats — say the GOP could still hang on, if only by a few seats. ... Democrats have pulled money out of several districts that should be competitive, indicating that Republicans have solidified their leads in the closing days of the campaign. ... Democrats should have had “these seats put away by now, and they don’t,” House Majority Leader Kevin McCarthy (R-Calif.) said in an interview. “I feel like they’ve hit a ceiling and held there — and we’re coming back.”