The Senate Agriculture Committee will markup Chairman Pat Roberts GMO labeling bill Thursday. Roberts released a draft of the bill last week that drew applause from many agriculture groups. However, as Politico reports, it’s unclear if Democrats will be able to ignore pressure from pro-labeling groups unhappy with the measure. The Kansas Senator’s bill serves as an abbreviated seven-page draft compared to the 37-page measure by a Kansas Representative, which passed the House last July by a 275-150 vote. The Senate bill would require USDA to set a voluntary national food labeling standard for genetically engineered foods, preempt state labeling laws on both GMO foods and seed, and require USDA to provide consumers with information on the benefits of biotechnology, according to the draft. Roberts did say he is open to amendments to the bill which he hopes will stop the labeling law in Vermont from going into effect in July of this year.