You need to provide a lot more detail to get an answer. Specifically:
1. What is a "passport cart"?
2. What country are you a citizen of?
3. What specific locations "within the US" do you plan on traveling between?
The reason all of these are important:
1. The US will issue a passport CARD to a US citizen upon request (and proof of identity/citizenship and payment of a fee). I'm not sure if this is what you mean when you say "passport cart" or not.
2. If you're not a US citizen you cannot get a US passport card; whether or not your country issues something similar, and whether the US recognizes those documents as opposed to the more traditional passport booklet, is something we'd need to know what country you're a citizen of to tell you.
3. US passport cards are not a complete substitute for a passport. For example, they are not valid for arrivals by air. You don't normally need a passport of any kind for domestic flights in the US itself, though even US citizens need a passport to travel from a US Territory to the US proper.
No, you cannot travel within the US with an expired passport.
No, you cannot travel within the US with an expired passport.
No, it is not possible to travel within the US with an expired passport.
Yes, you can travel within the US with a valid government-issued ID, such as a driver's license or passport.
None needed for travel within US
Yes, you can travel within the US without a passport. A valid government-issued photo ID, such as a driver's license or state ID card, is typically sufficient for domestic travel.
No passport is needed to travel within the United States. This is a nation of states that are the same country.
Yes, but you will need some government issued photo id (Driver's license, etc).
Yes, you can travel to Venezuela with a US passport.
No, it is not possible to travel outside the US without a passport. A passport is a necessary travel document for international travel.
Only in the US and it's territories.
When traveling from Puerto Rico to Florida, no passport is needed. Puerto Rico is part of the US, as is Florida. Traveling from Puerto Rico to Florida is travel within the United States. Citizens do not need a passport to travel within the US, although they do need some form of government-issued photo identification to get on a commercial airplane and a passport will serve that function. Non-citizens who are in Puerto Rico have already entered the US using a passport (or similar document for Canadians) and so need only the identification they would need to travel within the US, for example, from Miami to Atlanta, to travel to Florida or other locations in the US.