The web search results suggest that the measure could be expanded and affect ordinary residents, implying a need for more than just voter approval for future changes, but none of the provided sources definitively state that *all* future increases require a new voter approval.

The evidence provided does not contain specific details about the measure asking for a one-time 5% tax on billionaires or its broader implications. The web search results are general or related to dictionary definitions of 'measure'.

The web search results provide general information on how a two-thirds vote works in the US Congress (e.g., for removing disabilities or overriding vetoes), but they do not specifically confirm that the authority established by 'this measure' allows the legislature to build upon it with a two-thirds vote.

The web search results for this claim returned irrelevant content (potato chips, Buffalo Bills chapters, Browns Backers). No evidence was found to support the claim regarding 1.5 million signatures.

The evidence mentions taxes on value that may never be received (unrealized gains) and the disposal of confiscated assets, which supports the concept of state determination over assets, but no single source explicitly states the state determines 'ownership, value, and confiscation amount' in the manner claimed.

The evidence confirms that taxing assets like stocks, real estate, and businesses requires complex mechanisms, as suggested by the general nature of the search results regarding tax systems and asset valuation, though it does not detail the full 'machinery of valuation, auditing, enforcement, and collection' for all listed assets.

The web search results suggest that voter approval grants future legislative power to expand the tax, but this is presented as an interpretation of the measure's potential, not a confirmed, verifiable fact from multiple sources.