Final answer:
In Texas elections, the strongest factor linked to statewide electoral success is the ability to raise significant campaign funds, often from political action committees.
Step-by-step explanation:
In Texas elections today, the factor most strongly linked to statewide electoral success is the ability to raise a significant amount of money, which is often achieved through contributions from political action committees (PACs). Fundraising is vital in elections as it allows candidates to reach voters with their information and to get voters to the polls. Additionally, with early fundraising, a candidate becomes more viable and can attract further donations, as suggested by the principle behind EMILY's List. While possessing an advanced degree, lacking political experience, or belonging to a certain political party can all be factors, the overarching influence is the successful raising of campaign funds.