Amtrak doesn't own most of its rails. They have to negotiate with, e. g. BNSF and Union Pacific to use their tracks in most of the country. This often has led

Amtrak doesn't own most of its rails. They have to negotiate with, e. g. BNSF and Union Pacific to use their tracks in most of the country. This often has led to limits on services and schedules, because they don't want to repackage their profitable freight offerings, or upgrade trackage sufficient for 100kph freight trains but not 200kph+ modern passenger ones.