During Barack Obama's campaign for president in 2008, through his presidency, and afterwards, many conspiracy theories were circulated, falsely asserting that he was not a natural-born citizen of the United States and consequently, under , that he was ineligible to be President of the United States.
Gender identity is one's personal experience of one's own gender.
 Gender identity can correlate with assigned sex at birth, or can differ from it completely.
 All societies have a set of gender categories that can serve as the basis of the formation of a person's social identity in relation to other members of society.
 In most societies, there is a basic division between gender attributes assigned to males and females, a gender binary to which most people adhere and which includes expectations of masculinity and femininity in all aspects of sex and gender: biological sex, gender identity, and gender expression.
 In all societies, some individuals do not identify with some (or all) of the aspects of gender that are assigned to their biological sex; some of those individuals are transgender or genderqueer.
 Some societies have third gender categories.
Gender dysphoria, or gender identity disorder (GID), is the distress a person experiences as a result of the sex and gender they were assigned at birth.
 In this case, the assigned sex and gender do not match the person's gender identity, and the person is transgender.
 There is evidence suggesting that twins who identify with a gender different from their assigned sex may do so not only due to psychological or behavioral causes, but also biological ones related to their genetics or exposure to hormones before birth.
Gender roles are the social and behavioral norms considered appropriate in social situations for people of different genders.
 An understanding of these roles is evident in children as young as age 4 and are extremely important for their social development.
 Gender roles are influenced by the media, family, environment, and society.
 A child's understanding of gender roles impacts how they socialize with their peers and form relationships.
 Many young children have a firm sense of their gender identity, while some children can experience gender identity confusion.
 In addition to biological maturation, children develop within a set of gender-specific social and behavioral norms embedded in family structure, natural play patterns, close friendships, and the teeming social jungle of school life.
 The gender roles encountered in childhood play a large part in shaping an individual's self-concept and influence the way he or she forms relationships later on in life.
Transgender people are people who have a gender identity or gender expression that differs from their assigned sex.
 Transgender people are sometimes called "transsexual" if they desire medical assistance to transition from one sex to another.
 "Transgender" is also an umbrella term: in addition to including people whose gender identity is the "opposite" of their assigned sex (trans men and trans women), it may include people who are not exclusively masculine or feminine (people who are genderqueer/non-binary, e.g. bigender, pangender, genderfluid, or agender).
 Other definitions of "transgender" also include people who belong to a third gender, or conceptualize transgender people as a third gender.
 Infrequently, the term "transgender" is defined very broadly to include cross-dressers, regardless of their gender identity.
The National Organization for Marriage (NOM) is an American non-profit political organization established in 2007 to work against the legalization of same-sex marriage in the United States.
 It was formed in 2007 specifically to pass California Proposition 8 prohibiting same-sex marriage in California.
 The group has opposed civil union legislation and gay adoption, and has fought against allowing transgender individuals to use bathrooms that accord with their gender identity.
 Brian S. Brown has served as the group's president since 2010.
Transitioning is the process of changing one's gender presentation and/or sex characteristics to accord with one's internal sense of gender identity – the idea of what it means to be a man or a woman, or genderqueer (in-between).
 For transgender and transsexual people, this process commonly involves reassignment therapy (which may include hormone replacement therapy and sex reassignment surgery), with their gender identity being opposite that of their birth-assigned sex and gender.
 Transitioning might involve medical treatment, but it does not always involve it.
 For genderqueer people, it is neither solely female nor male.
 Cross-dressers, drag queens, and drag kings tend not to transition, since their variant gender presentations are (usually) only adopted temporarily.
The Sex Orientation Scale (SOS) was Harry Benjamin's attempt to classify and understand various forms and subtypes of transvestism and transsexualism in biological males, published in 1966.
 It was a seven-point scale (with three types of transvestism, three types of transsexualism, and one category for typical males); it was analogous to the Kinsey Scale as it relates to sexual orientation, which also had seven categories.
 Much like Kinsey's understanding of sexual orientation, Benjamin understood the nature of gender identity and gender expression not as a discrete scale, but as a spectrum, a continuum with many variations.
 However the Benjamin scale does not reflect a modern understanding of gender identity and is not useful as a contemporary diagnostic tool, especially due to its conflation of gender identity with sexual orientation.
The Yogyakarta Principles on the Application of International Human Rights Law in relation to Sexual Orientation and Gender Identity is a set of principles relating to sexual orientation and gender identity, intended to apply international human rights law standards to address the abuse of the human rights of lesbian, gay, bisexual and transgender (LGBT) people, and (briefly) intersex people.
 The Principles were developed to enhance the individual sovereignty of subjective identity, a principal articulated in a host of international human rights laws that protect the authentic reality of individual identity and sovereignty from the legal fictions and social constructs of national or state collectivist ideologies.
 The issue is further articulated by the struggles of indigenous peoples, gender and religious identity communities worldwide.
During the presidency of Barack Obama, certain Republican congressmembers stated that Obama may have engaged in impeachable activity and that he might face attempts to remove him from office.
 Rationales offered for possible impeachment included false claims that Obama was born outside of the United States, that he allegedly allowed people to use bathrooms based on their gender identity, an alleged White House cover-up after the 2012 Benghazi attack and failure to enforce immigration laws.
 No list of articles of impeachment was ever drawn up and proposed to the Judiciary Committee.

Question: When did the president who allegedly allowed people to use bathrooms based on gender identity campaign
Answer: 2008