Many Gay leaders in VA, both Republican and Democrat did not want him to veto the bill. They wanted him to sign it and then change ballot language.
Whether or not you agree with the tactics that were decided on - and I have no idea the real merits - The columnist is highly misleading because there was no consensus on the action to be taken and Kaine appears to have followed the advice of the Democratic Gay and Lesbian Coalition in VA = the Virginian Partisans.
It is not clear whether or not that a Governor has the constitutional authority to veto this type of legislation and there was a fear that vetoing would have no effect (they had more than enough votes to override and preferred instead that they use his office to have an impact on the wording.
http://www.washblade.com/2006/1-27/news/localnews/ballo... From the article
Sweeping marriage amendment heads to Virginia ballot
Gay leaders call on Kaine to change ballot language
Role is in question
The governor’s role in the constitutional amendment process is unclear, as historically his signature on the measure sending it to the ballot is largely procedural. A staff attorney with Legislative Services at the Virginia General Assembly said it is not clear if a governor’s ability to amend and veto all bills extends to the authorizing legislation that places constitutional amendments on the ballot. The issue could be litigated if the governor were to veto or amend the bill, she said.
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Gay leaders look to Kaine
"I do believe Governor Kaine has an important role to play in ensuring transparency and honesty in language that appears on the ballot," said Jay Fisette, an openly gay member of the Arlington County Board. "He has an obligation to ensure voters know the full breadth of what they’re being asked to vote on."
Josh Israel, president of the Virginia Partisans Gay & Lesbian Democratic Club, agreed, saying that Kaine "has some say in how the amendment gets phrased."
While it seems fairly certain that the amendment will go to voters in November, some gay rights advocates said Kaine should veto the bill that sends the measure to the ballot.
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A Kaine veto of the bill would be unprecedented, counterproductive and only symbolic since the veto can be easily overridden, said some observers.
"I think everyone would like to avoid a huge confrontation," said David Lampo of the Virginia Log Cabin Republicans. "
would never prevent it from going on the ballot."
Del. Adam Ebbin (D-Alexandria), who is gay, said Kaine should try to amend the bill to ensure the ballot question is "transparent."
"I have never heard of a governor trying to stop enabling legislation for a constitutional amendment," he said.
In as much as the Gay community was deeply divided on him signing the bill or not it seems like there are more organizations that wanted him to sign it and use his power to control the language. The group that I would be most interested in is the Democratic Gay and Lesbian Alliance in Va = Virginia Partisans. Their advice for the Governor is stated above and appears to be the advice he took