Yes. They are still the child's parent and responsible for supporting their child.
No - the new spouse isn't responsible for other men's children.
It depends on the state. Most states do not take a new spouse's income into account when determining the child support amount, so even if the custodial parent remarries, child support amounts are likely to stay the same.
Not automatically, but can be raised as a rebuttable presumption. see links
No. Child support is paid by non custodial parent, not step parent. Income of a New Spouse: Contrary to common belief, Illinois law permits judges to consider the income of a second spouse when establishing or modifying child support awards. The door swings both ways, too. A custodial parent who remarries a well-to-do spouse may suffer a reduction in child support to be paid by the non-custodial parent.19 Likewise, a non-custodial parent who remarries a spouse of substantial means may be required by the court to pay a higher child support than if the marriage had not taken place. http://www.illinoisdivorce.com/family_law_articles/etsblishing_child_support.php
The CP's marriage should not affect the NCP's child support obligation.
no
No. Remarriage by a non custodial or custodial parent does not impact child support matters. In the US, the laws always uphold the rights of the first born child/children as opposed to those of a second marriage or relationship. The status of a non custodial parent's financial obligations to minor children does not change when he or she remarries.
If the custodial parent is on any public assistance he or she must attempt to collect financial support from the non custodial parent or they will be disqualified for public aid.
If they worked previously, a presumed amount would be used based on a two year average. see link
No. The non custodial parent's income and assets in conjunction with state laws pertaining to the issue determine the amount of child support that should be paid. The income of the custodial parent is only considered in very rare circumstances.
yes