GM's ability to walk such a tightrope has been easier to do when it can fall, if needed, onto $21.7 billion in cash to end 2025. David A. Grogan | CNBC DETROIT — General Motors is proving to be a star tightrope walker when it comes to balancing its profits, vehicle portfolio and political whiplashing under the Trump administration. The Detroit automaker's 2025 results propelle... [6185 chars]