Proposal 'treats same-sex families as families'
Ariz. Republican reluctant to accept provision for gay couples
LGBT immigration group 'extremely disappointed' with proposal
Legislation has bipartisan support upon introduction
'Change has always come from ordinary Americans'
Jackson also asserts justices lack standing to hear case
President aware of the need 'to ensure that proper benefits are provided'
Child Trends says its research doesn't pertain to same-sex parents
Rep. Schiff circulates letter among U.S. House members
Attorneys cite inability of gay couples to procreate